Koss

Koss Plug In-Ear Headphones: The Ultimate Audio Companion for Classrooms and Learning Environments Elevate your audio experience with the Koss Plug In-Ear Headphones—designed for maximum comfort and superior sound quality in educational settings. Whether it's for libraries, computer labs, or classrooms, these headphones are the perfect accessory to support a focused learning environment. Key Features: Sleek, Modern Design: Available in a stylish combination of blue, white, and black, the Koss Plug seamlessly fits into any classroom or study space. Comfortable for Extended Use: Ideal for students and educators alike, these noise-isolating headphones are built for all-day comfort, ensuring your focus stays on learning, not discomfort. Universal Compatibility: Whether connected to mobile devices, tablets, or computers, the Koss Plug works effortlessly with all your learning tools. Effective Noise Isolation: Block out distracting classroom sounds and fully immerse in your educational content with in-ear headphones that offer superior noise isolation. Enhanced Sound Quality: Enjoy rich, detailed sound with custom comfort—memory foam ear cushions and expanding in-ear design enhance both sound isolation and the clarity of deep bass and treble. Extra Cushions for Perfect Fit: Includes additional soft foam ear cushions for a personalized, secure fit, ensuring a comfortable listening experience tailored to your needs. Durability and Peace of Mind: Covered by the Koss Stereophones Limited Lifetime Warranty, these headphones are built to last, offering long-term reliability for educational environments. Why Choose Koss Plug In-Ear Headphones? The Koss Plug is your go-to solution for classroom audio needs, offering noise isolation, superior comfort, and crisp sound quality. Perfect for students, educators, and institutions, these headphones are designed to make every learning activity more effective and enjoyable. Invest in Koss—where quality sound meets lasting comfort. Minimum Order: 5

The Koss Porta Pro Classic Portable Headphones have achieved iconic status among audiophiles and everyday listeners alike. Known for their retro styling, collapsible portability, and incredible sound quality, these on-ear headphones deliver a rich audio experience in a lightweight frame—making them perfect for students, professionals, and travelers. Legendary Sound. Timeless Design. Originally introduced in the 1980s, the Porta Pro headphones continue to stand the test of time. Their open-air dynamic design delivers deep bass and crisp highs with minimal distortion. Whether you're in the classroom, commuting, or studying, the Porta Pro's detailed and balanced sound profile makes them an outstanding choice for high-fidelity audio on the go. Why users love the Porta Pro Classic Collapsible Headband: Unique folding design allows for compact storage and portability—perfect for travel and daily use. Dynamic Sound: High-quality drivers deliver rich bass, articulate midrange, and extended highs with a wide frequency response. Comfort Zone Settings: Adjustable temporal pads on each side reduce pressure on the ears, allowing for hours of comfortable wear. Durability Meets Flexibility: Built with lightweight materials that maintain strength and resilience through daily use. Retro Look: Beloved for its vintage design that hasn’t changed in decades, combining nostalgia with proven performance. Carrying Case Included: Comes with a soft carrying pouch to protect your headphones when not in use. Use Case Scenarios Perfect for individual classroom use, digital learning, or multimedia playback Ideal for travel, remote work, podcasts, streaming, and casual listening Great for educators, students, and professionals who value sound quality and portability Compatibility Works with a wide variety of audio devices including: Laptops and desktops (Mac and PC) Chromebooks and tablets Smartphones with 3.5mm jack (or adapter) MP3 players, portable stereos, and audio interfaces AV equipment and language lab setups Specifications Frequency Response: 15Hz – 25,000Hz Impedance: 60 ohms Sensitivity: 101 dB SPL/1mW Driver: Dynamic Plug Type: 3.5mm stereo mini-plug (straight) Cable Length: 4 ft (1.2 m) Ear Cushion Type: Foam on-ear pads Weight: 2.1 oz (60 g) Foldable: Yes Warranty: Limited Lifetime Warranty from Koss What’s in the Box? 1x Koss Porta Pro Classic Headphones 1x Soft Travel Pouch 1x User Guide Trusted by Generations Whether you're shopping for school headphones, a dependable audio solution for travel, or just want to revisit the timeless sound of a classic design, the Porta Pro Classic delivers quality you can hear. Discover why it remains a go-to choice across generations.

Koss QZ5 Passive Noise Reduction Headphones – Superior Sound, Ultimate Comfort, and Unmatched Noise Isolation Unlock a new level of listening experience with the Koss QZ5 Passive Noise Reduction Headphones. Engineered to provide outstanding sound quality and exceptional noise isolation, these headphones are perfect for audiophiles and anyone looking to enjoy their music, radio, or scanner without distractions. Designed for both indoor and outdoor use, the QZ5 offers durability, comfort, and superior performance wherever you go. Key Features & Benefits: Passive Noise Reduction Technology: Experience unparalleled sound clarity with the QZ5’s advanced passive noise reduction. The Pneumalite™ closed ear cushions and extra-secure headband seal your ears from outside noise, letting you enjoy your audio without interruptions. Crystal-Clear Sound with Neodymium Magnets: Powered by neodymium magnet structures, these headphones deliver crisp, detailed sound and deep bass, making them ideal for audiophiles who demand clarity and definition from every note. Comfortable and Secure Fit: The behind-the-head, extra-secure headband ensures a comfortable, stable fit, perfect for long listening sessions or active use. The ear cushions create a snug seal for superior noise isolation. Convenient Volume Control: Adjust your sound levels on-the-fly with the built-in volume control located directly on the ear cup. No need to fumble with external devices—control your audio right at your fingertips. Stereo/Mono Switch for Flexibility: Whether you’re using the headphones for music or as a communication device, the stereo/mono switch offers the flexibility to easily switch between different audio outputs, making them versatile for various uses. Durable and Travel-Ready: With an 8-foot coiled cord and included adapters, these headphones are ready for any adventure. Compatible with most radios, scanners, and audio devices, the QZ5 is designed for easy, on-the-go use. Koss Limited Lifetime Warranty: Trust in the durability and quality of your headphones, backed by the Koss Limited Lifetime Warranty, ensuring long-lasting performance and peace of mind. Whether you’re a professional, hobbyist, or passionate listener, the Koss QZ5 headphones are built to deliver the ultimate audio experience with unmatched comfort and noise isolation. Elevate your listening experience today with the Koss QZ5 Passive Noise Reduction Headphones.

Koss SB45 Multimedia Headset – Premium Sound, Comfort, and Convenience The Koss SB45 Multimedia Headset is designed for those who demand both exceptional audio quality and comfort, whether for personal use, work, or study. With its foldable design, noise-reduction technology, and comfortable ear cushions, this headset delivers a premium experience wherever you go. Perfect for online meetings, multimedia use, and hands-free calls, it’s the ideal headset for clear communication and long-lasting comfort. Key Features & Benefits: Clear Voice Technology (CVT): Experience superior voice clarity with Koss's Noise-Reduction CVT, which ensures crystal-clear communication by minimizing background noise. Whether you're making calls, attending virtual meetings, or participating in online learning, your voice will come through loud and clear. Premium Sound Quality: The SB45 is engineered with anisotropic ferrite magnets that enhance sensitivity and reduce sound distortion. Enjoy high-quality, balanced sound across all volume levels, whether you’re listening to music, watching videos, or engaged in multimedia tasks. Comfortable, Soft Leatherette Ear Cushions: Stay comfortable for hours with plush, leatherette ear cushions that provide a snug fit while blocking out distractions. Perfect for extended use, these cushions are soft to the touch and easy to clean. Adjustable, One-Size-Fits-All Design: The adjustable headband ensures a secure, personalized fit for users of all head sizes, making the SB45 an excellent choice for both kids and adults. Space-Saving, Foldable Design: Ideal for on-the-go use, the SB45 easily folds up for compact storage or easy transportation. Keep it in your bag, backpack, or desk drawer without taking up much space—perfect for students, professionals, or travelers. Independent 3.5mm Plugs: For easy setup, the headset comes with independent 3.5mm plugs for the headphone and microphone, making it simple to connect to a variety of devices including computers, smartphones, and tablets. Koss Limited Lifetime Warranty: Backed by Koss’s reputation for quality, the SB45 comes with a Limited Lifetime Warranty, giving you peace of mind and confidence in your purchase. Specifications: Noise Reduction: Clear Voice Technology (CVT) for superior audio quality and reduced background noise Ear Cushions: Soft, leatherette for ultimate comfort and durability Headband: Adjustable to fit most head sizes Sound Quality: Anisotropic ferrite magnet structure for high sensitivity and minimal distortion Connectivity: Independent 3.5mm plugs for easy headphone and microphone connection Design: Foldable for convenient storage and portability Warranty: Koss Limited Lifetime Warranty for long-term satisfaction Why Choose the Koss SB45 Multimedia Headset? Whether you're looking for a reliable headset for online meetings, study sessions, or entertainment, the Koss SB45 is built to deliver. With noise-canceling technology, superior sound, and a foldable design, it’s the perfect combination of performance and convenience. Ideal for all ages and all uses, the SB45 ensures you stay comfortable and connected wherever you are. Order TodayUpgrade your audio experience with the Koss SB45 Multimedia Headset. Don’t miss out on premium sound, unbeatable comfort, and portability—all backed by Koss’s Lifetime Warranty.

Noise-Isolating Earbuds – Comfort, Durability, and Premium Sound for Classroom Learning Enhance your students’ learning experience with these Noise-Isolating Earbuds, designed for maximum comfort, durability, and high-quality sound. Perfect for modern educational environments, these earbuds provide crystal-clear audio while effectively blocking out distractions. Equipped with three different cushion sizes, an in-line mic, and a TRRS adapter, they are optimized for use with iPads, Chromebooks, and a variety of mobile devices. Key Features: Noise-Isolating Design: Block out background noise, allowing students to focus on their lessons without distractions. Ideal for classrooms, libraries, or study environments. Three Cushion Sizes for Comfort: Includes three sets of ear cushions in different sizes, ensuring a secure and comfortable fit for all students, even during extended use. In-Line Microphone with Push-to-Talk Button: The built-in in-line mic with a push-to-talk button allows for clear communication in online learning, virtual lessons, or group projects. TRRS Single Plug Adapter: Designed with a TRRS adapter, these earbuds are perfect for classroom iPads, Chromebooks, and other devices requiring a single 3.5mm plug. Premium Sound Quality: Deliver high-quality, full-bodied audio, making them perfect for listening to lessons, videos, music, and interactive learning apps. 4-Foot Cord for Flexibility: The 4-foot cord provides ample length for students to move freely while staying connected to their devices. Durable for Extended Use: Built to withstand daily classroom use, these earbuds are durable and made for students' active lifestyles. Limited Lifetime Warranty: With a limited lifetime warranty, you can trust these earbuds to provide reliable performance throughout the school year and beyond. Why Choose Noise-Isolating Earbuds? Optimized for Education: These earbuds are tailored for the classroom, making them ideal for online learning, educational apps, and testing environments. Comfortable Fit for All Ages: With three cushion sizes and an ergonomic design, these earbuds offer a snug, comfortable fit that works for students of all ages. Affordable, High-Quality Audio: Enjoy high-performance sound at a budget-friendly price, making these earbuds a practical and cost-effective solution for schools. Perfect for both individual and group learning, the Noise-Isolating Earbuds offer a great balance of comfort, functionality, and sound quality for today’s students. Order today to provide your classroom with the best in audio technology. Minimum Order: 5

Introducing the Koss SPARKPLUG VCk Earbuds — a compact, high‑performance audio choice crafted for learning environments, labs, and student desktops. These earbuds combine noise‑isolating foam cushions, an in‑line volume control, and a wired 3.5 mm connection for immediate compatibility and simplified setup. Why classrooms like the SPARKPLUG VCk Memory‑foam urethane earpads that mould to each ear and help block ambient noise — ideal for busy labs and shared spaces. In‑line volume control lets students adjust audio levels without leaving their seat or fiddling with the device. Standard 3.5 mm plug offers broad compatibility with desktops, laptops, Chromebooks, media carts and learning stations. Compact and lightweight design means easy storage and hand‑out use in classrooms, testing settings, and mobile setups. Compatibility The SPARKPLUG VCk uses a standard 3.5 mm stereo plug compatible with desktops, laptops, audio carts, tablets with headphone jacks, and most school audio systems. It is not wireless or USB‑C native unless used with an adapter. Care & Hygiene For shared use in classrooms: wipe the foam earpads and cable with school‑approved disinfectant wipes between uses. Allow earbud surfaces to dry completely. Store in a labelled, clean container. These earbuds are individually packaged which helps maintain hygiene in multi‑user environments. Tech specs Driver Type: Dynamic (in‑ear/earbud) design with external port structure for enhanced clarity. Frequency Response: 10 Hz – 20,000 Hz (source for similar SparkPlug model) Impedance: 16 Ω typical (for good performance on low‑power student devices) Sensitivity: 112 dB SPL typical. Plug Type: 3.5 mm TRS stereo plug (straight cable). Cable Length: Approx. 4 ft / 1.2 m (in‑line volume control built in cord). Earpads: Slow‑memory foam (urethane) for custom fit and isolation.

Meet the Sporta Pro — on‑ear, foldable, and built for active listening in classrooms, media rooms, and shared‑use spaces. With its dynamic driver design, foam ear cushions, and travel‑friendly fold‑flat build, it’s a lightweight yet dependable option for student audio setups. Why classrooms like the Sporta Pro Lightweight and foldable design makes storing and sharing easy in carts or mobile setups Dynamic elements deliver deep bass and a wide frequency response — ideal for richer audio during learning, media, and testing scenarios} Foam ear cushions for all‑day comfort and ease of cleaning between uses Standard 3.5mm plug with 4‑ft dual‑entry cord supports most school desktops and student devices Compatibility The Sporta Pro uses a standard 3.5 mm stereo plug and is compatible with desktops, laptops, media‑carts, and any learning device with a headphone jack. It is wired (no wireless or USB‑C native) unless used with an adapter. Care & Hygiene Because these are used in shared‑use settings, wipe the foam ear cushions with school‑approved disinfectant wipes between users. Store in a dry, labelled bin. Although foldable, avoid folding when still damp or storing under heavy objects. Tech specs Driver Type: Dynamic, on‑ear (foldable) design Frequency Response: 15 Hz – 25,000 Hz Impedance: 60 Ω Sensitivity: 103 dB SPL Plug Type: 3.5 mm stereo (straight, ¼″ adapter included) Cable Length: 4 ft / ~1.2 m, straight dual‑entry cord Wearing Style: On‑ear, foldable for portability

Koss KTXPro1 Headphones – Lightweight, High-Fidelity Sound for On-the-Go Listening Experience the ultimate in portable audio with the Koss KTXPro1 Headphones. Designed for those who demand both comfort and exceptional sound quality, these headphones provide crystal-clear, high-fidelity audio with every use. Whether you're listening at home, at work, or on the go, the KTXPro1 offers superior sound performance and convenient features, making it the ideal choice for any audio enthusiast. Key Features: Lightweight & Portable Design: These headphones are lightweight and feature an adjustable headband, ensuring a comfortable and secure fit for all head sizes. Perfect for extended listening at home, in the office, or on the move. Open Foam Earcushions for Hear-Through Sound: The open foam ear cushions allow for high-fidelity, hear-through sound, offering a more natural listening experience that helps you stay connected with your environment, making them ideal for portable music and daily use. In-Line Volume Control: Easily adjust your sound with the in-line volume control, giving you the flexibility to make quick adjustments without touching your device, ensuring a seamless listening experience. Titanium Sound Reproduction: Equipped with a titanium-layered diaphragm, these headphones deliver precise, accurate sound reproduction, ensuring that every note, beat, and melody is crystal clear. Versatile Connectivity: The straight, 4-foot dual-entry cord comes with a 3.5mm plug and a 6.3mm adapter, offering wide compatibility with a variety of devices, from smartphones to high-end audio equipment. Why Choose Koss KTXPro1 Headphones? The Koss KTXPro1 Headphones are the perfect balance of portability, comfort, and sound quality. Whether you’re enjoying music, podcasts, or movies, the KTXPro1 offers clear and accurate sound with a design built for convenience and durability. With adjustable earcups, hear-through audio, and a lightweight structure, these headphones ensure comfort throughout long listening sessions. Specifications: Frequency Response: 15Hz – 25,000Hz for detailed sound reproduction Impedance: 60 ohms for consistent audio performance Sensitivity: 103 dB SPL/1mW for clear, loud sound Total Harmonic Distortion: <0.2% for pure, distortion-free audio Cord Length: Straight, dual-entry, 4 feet for easy movement and flexibility Warranty: Limited Lifetime Warranty for peace of mind Order your Koss KTXPro1 Headphones today and experience high-quality sound wherever life takes you!

Designed for mobility and everyday comfort, the Koss UR10 On‑Ear Headphones deliver a lightweight, portable solution for learning environments, media carts, or student setups. Their adjustable headband and standard 3.5mm connection make them a practical choice for classrooms and libraries. Why classrooms like the UR10 Lightweight on‑ear design for comfortable all‑day wear Adjustable headband to fit a wide range of students and staff Standard 3.5mm plug for easy compatibility with most school desktops and laptops Closed‑back style helps reduce ambient noise in shared learning spaces Compatibility The UR10 uses a wired 3.5 mm stereo plug and is compatible with desktops, laptops, Chromebooks (with audio jack), media stations and most school‑grade audio systems. It is not USB or wireless — just plug and play. Care & Hygiene For shared use, wipe the ear cushions and headband with school‑approved disinfectant wipes between uses. Let dry before next student. This model doesn’t support replaceable ear pads — store in a protective bin when not in use. Tech specs Driver Type: Dynamic, closed‑back design Frequency Response: 60 Hz – 20,000 Hz} Impedance: 32 Ω Sensitivity: 94 dB SPL Plug Type: 3.5 mm TRS stereo Cable Length: 4 ft / ~1.2 m straight cord Wearing Style: On‑ear with adjustable headband

Koss UR18 Headphones – Lightweight, High-Quality Sound for On-the-Go Listening Enjoy rich, digital-quality sound in an ultra-light, portable design with the Koss UR18 Headphones. Perfect for students, travelers, or anyone who needs reliable headphones on the go, the UR18 delivers exceptional audio performance without compromising on comfort or convenience. Whether you're listening to lessons, music, or podcasts, these headphones provide clear sound and enhanced bass, making every audio experience more immersive. Key Features & Benefits: Digital-Quality Sound: The Koss UR18 features a dynamic driver system that delivers a wide frequency response of 25-15,000 Hz, ensuring clear and rich sound across a broad audio range. From deep bass to sparkling highs, experience every detail of your audio content. Enhanced Bass with Leatherette Cushions: The closed leatherette ear cushions provide a snug, comfortable fit that forms a seal around the ears, significantly enhancing bass frequencies for a more immersive listening experience. Ultra-Lightweight Design for Comfort: Designed with comfort in mind, the UR18 headphones feature an adjustable headband that fits all head shapes and sizes. Weighing just a few ounces, they are perfect for long listening sessions without causing discomfort or ear fatigue. Convenient and Portable: These headphones fold into a compact configuration, making them easy to store and travel with. The 8-foot straight cord provides ample length for use with a variety of devices, whether at your desk, on a tablet, or while commuting. Koss Limited Lifetime Warranty: Backed by the Koss Stereophones Limited Lifetime Warranty, the UR18 headphones are built to last, providing you with reliable performance for years to come. Specifications: Frequency Response: 25-15,000 Hz for a broad range of sound reproduction Ear Cushions: Closed leatherette cushions for improved bass and sound isolation Headband: Adjustable for maximum comfort, suitable for all head shapes Cord Length: 8-foot straight cord for versatile use Plug: Dual-entry with 3.5mm (1/8-inch) plug for compatibility with most devices Portability: Folds into a compact configuration for easy storage Warranty: Koss Limited Lifetime Warranty for peace of mind Why Choose Koss UR18 Headphones? The Koss UR18 is the perfect choice for anyone seeking high-quality sound in a lightweight, portable design. Whether you're a student listening to online lectures, a traveler enjoying music on the go, or someone who values comfort and clarity, the UR18 provides excellent performance and lasting comfort. With a Koss Limited Lifetime Warranty, you can trust these headphones to deliver reliable sound for years.

Designed for immersive listening and built to handle the rigors of daily student use, the Koss UR20 Full-Size DJ Style Headphones are a dependable choice for classrooms, media labs, and distance learning. These over-ear headphones offer exceptional sound isolation, a durable build, and the comfort needed for extended lessons or test sessions. The UR20 features a closed-back design with large leatherette ear cushions that surround the ears for passive noise reduction — perfect for minimizing distractions in shared learning spaces. The extra-wide headband is fully adjustable and padded for a secure, fatigue-free fit, even during long listening periods. Its 8-foot straight cord gives students flexibility at their desks without pulling or snagging, making it easy to move between devices or stations. With a standard 3.5mm plug, the UR20 works seamlessly with desktops, laptops, media carts, and most school audio equipment. Whether you're outfitting a computer lab, supporting student creativity with music and video editing, or building out a remote learning station, these headphones deliver reliable performance at a student-friendly price point. Why classrooms like the Koss UR20 Over-ear design helps reduce ambient noise in busy classrooms and labs Adjustable padded headband for secure, all-day comfort 8-foot straight cord allows freedom of movement and easy desk setup Works with standard 3.5mm headphone jacks (no adapters required) Durable housing and cable for daily student use Compatibility The Koss UR20 uses a universal 3.5mm TRS headphone plug, making it compatible with most school desktops, laptops, Chromebooks (with audio jacks), media players, and digital learning tools. It is not compatible with USB-C or Lightning-only devices without adapters. Care & Hygiene Wipe ear cushions and headband with school-approved disinfectant wipes between uses. Allow surfaces to dry before the next session. This model does not support removable earpads but can be stored in protective classroom bins or charging stations between classes. Tech specs Driver Type: Dynamic, closed-back Frequency Response: 30 Hz – 20,000 Hz Impedance: 32 ohms Sensitivity: 97 dB SPL Plug Type: 3.5mm TRS (standard straight plug) Cable Length: 8 feet (non-detachable) Ear Cushions: Padded leatherette (non-replaceable) Headband: Extra-wide, padded, fully adjustable Weight: 1.1 lb (approx.)

Koss UR29 Noise-Isolating Headphones – Powerful Sound, Ultimate Comfort, and Portability Experience the powerful studio sound of the Koss UR29 Noise-Isolating Headphones, designed for those who crave rich bass, clear audio, and unbeatable comfort. Whether you’re a DJ, music enthusiast, or simply someone who loves high-quality sound, the UR29 headphones offer the perfect balance of performance and portability. Compact, collapsible, and built to last, these headphones deliver premium sound on the go. Key Features: Bass-Enhanced, High-Quality Sound: The UR29 headphones deliver enhanced bass and a full-frequency response, bringing your music to life with deep, rich sound. Perfect for DJs and anyone who appreciates high-quality audio. Noise-Isolating Comfort: The closed leatherette ear cushions seal comfortably around the ears, improving bass performance while blocking out external noise. This ensures a focused, immersive listening experience with minimal sound leakage. Collapsible & Portable Design: The ear cups fold into a compact design, making it easy to store and travel with the UR29 headphones. Take your sound on the go, whether you’re heading to a gig or traveling. Great Sound with Low-Voltage Devices: Designed to deliver excellent volume and sound quality, even with low-voltage portable devices, the UR29 headphones ensure powerful performance wherever you are. Durable & Comfortable Fit: The adjustable padded headband and comfortable ear cushions provide long-lasting comfort, even during extended listening sessions, making them ideal for both professional use and casual listening. Koss Stereophones Limited Lifetime Warranty: Enjoy peace of mind with the Koss Limited Lifetime Warranty, ensuring your headphones are built to last for years. Specifications: Frequency Response: 18-20,000 Hz for full-range, detailed sound Ear Cushions: Closed leatherette ear cushions for enhanced comfort and sound isolation Collapsible Design: For easy storage and portability Headband: Padded and adjustable for a personalized fit Volume Control: Convenient volume control on the cord for easy adjustments Cord Length: 8 feet straight, single-entry cord for flexibility and convenience Warranty: Koss Stereophones Limited Lifetime Warranty for long-term durability Why Choose Koss UR29 Noise-Isolating Headphones? The Koss UR29 Noise-Isolating Headphones provide exceptional sound quality, comfort, and portability, making them perfect for DJs, audio enthusiasts, or anyone who values rich, detailed sound. With bass-enhanced audio, noise isolation, and a collapsible design, these headphones deliver everything you need for both professional and personal use. Order your Koss UR29 Noise-Isolating Headphones today and enjoy powerful sound and comfort wherever you go!

Koss UR40 Foldable Headphones – Lightweight, Durable, and Perfect for Student Learning Designed with students in mind, the Koss UR40 Foldable Headphones offer the perfect combination of comfort, portability, and exceptional sound quality. At just over 6 ounces, these lightweight headphones are perfect for long study sessions, classroom activities, and on-the-go learning. Their collapsible design ensures easy storage and travel, making them the ideal choice for educators, students, and anyone in need of reliable, portable audio solutions. Key Features & Benefits: Lightweight & Portable Design: Weighing just over 6 ounces, the Koss UR40 headphones are ultra-light, making them perfect for students of all ages. The foldable design allows them to easily collapse into a compact shape, making them simple to store and travel with—ideal for busy students and classrooms. Superior Sound Quality: Equipped with a full-frequency range of 15-22,000 Hz, these headphones deliver clean, crisp sound that transforms any recording into a vibrant "live" experience. Whether it's for music, lessons, or multimedia content, enjoy deep bass and clear treble across a wide audio spectrum. Comfortable & Durable: Featuring closed leatherette ear cushions, the UR40 provides a snug, comfortable fit that enhances bass and blocks out unwanted distractions. The cushioned ear cups are designed to form a tight seal around the ears, providing hours of comfortable listening, even during extended study sessions. Oxygen-Free Copper Voice Coils: Designed to deliver greater volume levels, even with low-voltage portable devices, the UR40 headphones are powered by oxygen-free copper voice coils, ensuring superior sound performance without distortion. Stay Connected with Your Environment: The screened ear cups allow users to stay aware of their surroundings, offering an open, hear-through sound that’s perfect for environments where students need to remain alert to external sounds while enjoying their audio content. Portable and Travel-Friendly: With an airy mesh sling for soft, breathable support, the Koss UR40 ensures maximum comfort for long-term use. The headphones come with a straight, dual-entry 4-foot cord that’s ideal for use with computers, tablets, and other audio devices, plus gold-flashed 3.5mm plugs for reliable connectivity. Koss Lifetime Warranty: Covered under the Koss Stereophones Limited Lifetime Warranty, you can trust the UR40 headphones to provide reliable performance throughout the years. Koss has built a reputation for durability, making these headphones a smart long-term investment for students and educators. Specifications: Frequency Response: 15-22,000 Hz for full-range audio Voice Coils: Oxygen-free copper for clear, distortion-free sound Ear Cushions: Closed leatherette for improved bass and noise isolation Cord: Straight dual-entry 4-foot cord with dual plugs for easy connection Plug: Gold-flashed 3.5mm (1/8-inch) plug for secure, high-quality connection Weight: Just over 6 oz – lightweight and easy to carry Warranty: Koss Limited Lifetime Warranty for peace of mind Why Choose Koss UR40 Foldable Headphones? Whether you’re a student looking for reliable headphones for school or a teacher in need of a durable audio solution for the classroom, the Koss UR40 Foldable Headphones provide everything you need. With superior sound, long-lasting comfort, and a portable design, these headphones are built to enhance the learning experience and make everyday audio tasks easier and more enjoyable.

USB Headset Noise‑Cancelling Mic delivers clear communication, comfort, and simplicity. With a single USB connection, noise‑reducing electret mic, and soft ear cushions, it’s designed for classrooms, labs, and online learning environments. Key Features & Benefits USB Plug for quick, driver‑free setup on PC/Mac Noise‑Cancelling Electret Microphone minimizes background sound for clean voice capture Extended frequency response for richer audio experience} Foam ear cushions with open / hear‑through design for comfort and awareness Adjustable headband fits a variety of users Durable build backed by Koss Limited Lifetime Warranty Technical Specifications Frequency Response: 30–16,000 Hz (headset); 100–16,000 Hz (mic) Impedance: 32 Ohms (headset) Sensitivity: 91 dB SPL (headset); –56 dB ±3 dB mic sensitivity Cord: Straight, single-entry, 8 ft Plug: USB‑A (USB interface) Model / SKU: CS100‑USB

USB Headset with Noise-Cancelling Mic is designed to deliver exceptional comfort and clear communication for a variety of educational and professional applications. Whether you're using it for classroom communication, interactive learning software, or multi-student interactions, this headset ensures optimal sound quality and reliability throughout extended use. Key Features & Benefits Plug-and-Play USB Connectivity: The single USB plug allows for quick and easy connection to your PC, making setup hassle-free and perfect for both classroom settings and remote learning environments. Noise-Reducing Electret Microphone: The integrated electret noise-reduction microphone ensures hands-free communication with clear, crisp audio, blocking out background noise for an undisturbed learning experience. Ideal for online learning, language programs, and virtual classes. Dynamic Sound Quality: With an extended frequency response, the CS95 headset provides clear, full-range audio, ensuring speech is always sharp and intelligible. Whether for voice applications, speech recognition, or interactive gaming, enjoy natural, high-quality sound. Comfortable Design for Extended Use: Soft foam ear cushions deliver a comfortable, open, hear-through sound, perfect for long study sessions, online courses, or classroom activities. The adjustable headband ensures a secure, customized fit for all users. Versatile and Reliable: The CS95 is compatible with various PC voice applications and language learning software, supporting both educational and professional environments. It can also be used with an external power source if your sound card does not have a built-in bias supply. Specifications Frequency Response: 30-16,000 Hz (headset); 100–16,000 Hz (microphone) Impedance: 32 Ohms (headset); Same as load resistance (microphone) Sensitivity: 91 dB SPL (headset); -56dB +/- 3dB per 1V/µbar @1kHz (microphone) Microphone: Electret noise-canceling microphone for clear communication Ear Cushions: One foam ear cushion for single-sided listening Cord Length: 8ft single-entry cord for convenient movement

Koss Communication Headset with Noise-Reduction MicrophoneClear Voice Technology & Premium Sound for Seamless Communication Enhance your communication experience with the Koss Communication Headset, designed to provide crystal-clear sound and superior comfort. Whether for online classes, virtual meetings, or gaming, this headset ensures high-quality audio, noise-reduction, and a comfortable fit that lasts for hours. Backed by Clear Voice Technology and premium sound features, it's the perfect solution for students, professionals, and anyone who needs reliable and clear audio. Key Features & Benefits: Clear Voice Technology (CVT)Equipped with Clear Voice Technology, the Koss headset minimizes background noise, ensuring your voice comes through loud and clear during calls, lectures, or meetings. Perfect for both voice communication and speech recognition applications. Premium Sound at Any VolumeEnjoy premium, distortion-free sound with an anisotropic ferrite magnet structure, delivering high sensitivity and reducing unwanted sound distortion. Whether you're speaking, listening, or engaging in activities, this headset ensures optimal audio performance at all volume levels. Noise-Reduction MicrophoneThe noise-reduction microphone eliminates distractions and background noise, providing crisp, clear communication every time, even in noisy environments. Comfortable, All-Day WearDesigned with soft leatherette ear cushions, the headset provides exceptional comfort, even during long hours of use. Whether you're studying, working, or relaxing with your favorite media, this headset is built to keep you comfortable. Collapsible for Easy StorageNeed a compact solution? The collapsible design makes this headset easy to store and carry, saving space and offering convenience for on-the-go use, whether you're traveling or just tidying up your workspace. Quick USB Plug for Easy SetupConnecting is quick and simple with the single USB plug, allowing you to easily set up your headset with any compatible device without the hassle of complex connections. Durable and ReliableCovered by the Koss Limited Lifetime Warranty, you can rest assured that your headset is built to last and backed by Koss' trusted quality. Why Choose the Koss Communication Headset? Clear Communication: With noise-reduction microphone and Clear Voice Technology, your voice will always be heard clearly, even in noisy environments. Superior Sound: The anisotropic ferrite magnet structure ensures premium sound quality at any volume, reducing distortion and delivering a crisp, balanced audio experience. Comfortable for Extended Use: Soft leatherette ear cushions and a lightweight design make it comfortable for hours of use. Space-Saving and Portable: The collapsible design makes it easy to store, carry, and travel with. Reliable Durability: Backed by Koss' Limited Lifetime Warranty, ensuring long-lasting performance and peace of mind. Elevate your communication setup with the Koss Communication Headset—the perfect combination of premium sound quality, clear voice technology, and unmatched comfort. Whether for learning, work, or play, this headset delivers a reliable and enjoyable audio experience.