Koss

Stock classrooms, testing labs, and carts with the dependable Koss UR5. These lightweight, on‑ear stereo headphones use a universal 3.5 mm plug and a classroom‑friendly 4 ft (≈1.2 m) cable—ideal for Chromebooks, desktops, and devices with a standard audio jack. Why classrooms like the UR5 Lightweight on‑ear design: comfortable for long class sessions Clear stereo playback: tuned for lessons, videos, and assessments Universal 3.5 mm plug: works with most laptops and desktops Classroom‑length cable (~4 ft / 1.2 m): tidy and durable setup Bulk value: 100‑pack for fast deployment across rooms and labs Compatibility at a glance Note: UR5 is an audio‑only headphone (no built‑in mic). For voice capture, use earbuds with a mic or a headset. If your device has no audio jack (USB‑C only), use a USB audio adapter or pick a USB model. For microphone needs, select a headset or mic‑equipped model. Tech specs Form factor: on‑ear (supra‑aural), closed‑back Connection: 3.5 mm stereo plug Cable length: ~4 ft (≈1.2 m) Impedance: 32 Ω (nominal) Sensitivity: ≈91 dB SPL @1 mW Frequency response: ~80 Hz – 18 kHz Microphone: none (audio playback only) Quantity: 100 headphones per pack

Headset with Flexible Boom Mic delivers clear voice communication with comfort. Featuring a noise‑canceling electret mic on a flexible boom and full‑range audio, it’s ideal for language labs, online lessons, and computer classes. Key Features & Benefits Flexible, noise‑canceling boom mic ensures your voice comes through clearly Single 3.5 mm TRRS plug — works with PCs, Macs, iPads, Chromebooks, and more Soft foam ear cushions and adjustable headband for extended comfortable wear Full frequency response (20–22,000 Hz) for accurate audio playback Lightweight yet durable construction built for student use Technical Specifications SKU: CS200i Frequency Response: 20–22,000 Hz Impedance: 32 Ω Sensitivity: 102 dB SPL Cord Length: 4 ft Plug Type: 3.5 mm TRRS Microphone: Electret, noise‑canceling, flexible boom Earpad: Soft foam Headband: Adjustable Usage & Tips Position the boom mic close to your mouth for best clarity; rotate it away when unused The TRRS plug supports both mic and audio in one connection—no adapter needed Wipe the cushions periodically with a damp cloth; avoid soaking Avoid sharp bends at the plug or near entry points to ensure longevity

Dual Plug Headset Noise‑Cancelling Mic offers clear speech and reliable performance through its electret noise‑reducing microphone and dual 3.5 mm plugs. This design ensures wide compatibility with many PCs and lab setups. Key Features & Benefits Electret noise‑cancelling microphone reduces ambient sound for clean communication Dual plug design: separate plugs for headphone & mic — works with many devices Comfortable foam ear cushions for long sessions Durable build suitable for daily school use 8 ft straight, single-entry cord gives flexibility while staying organized Technical Specifications SKU: CS100 Frequency Response: 30‑16,000 Hz (headset); 100‑16,000 Hz (mic) Impedance: 32 Ω Sensitivity: 91 dB SPL/1 mW (headset); –56 dB ± 3 dB mic sensitivity} Cable: 8 ft straight, single entry Plug Type: Dual 3.5 mm plugs (one for headphone, one for mic) Warranty: Koss limited lifetime warranty (as per product page)

Koss IL200 KTC Interlocking In-Ear Headphones: Durable, Noise-Isolating, and Perfect for Education The Koss IL200 KTC Interlocking In-Ear Headphones are designed to deliver exceptional sound quality, comfort, and convenience—ideal for classrooms, computer labs, and libraries. These innovative headphones combine cutting-edge technology with a durable, tangle-free design to create the ultimate audio solution for students and educators alike. Key Features: Tangle-Free Interlocking Design: The interlocking form of the headphones allows them to nestle together easily for simple, tangle-free storage, reducing the hassle of dealing with frustrating knots. Perfect for schools and classrooms, this feature ensures students can focus on their learning, not untangling cords. Noise-Isolating Earbuds: With noise-isolating in-ear stereophones, these headphones block out distractions, helping students stay focused on their lessons, whether it’s listening to educational programs or taking part in testing. Enjoy crisp highs and clear lows without interference from ambient noise. Customizable Comfort: Includes three sizes of silicone ear cushions, ensuring a comfortable and secure fit for students of all ages. Whether for extended listening or group activities, these earbuds provide an all-day comfort experience. Koss Touch Control (KTC): The built-in Koss Touch Control (KTC) remote and microphone technology is fully compatible with iPhone®, iPad®, and iPod® devices, making it easy for students to interact with their devices for educational activities, voice recording, or communication. Durable Metal Construction: The cast and machined metal enclosure provides long-lasting durability, with a high-quality build that resists wear and tear, even with frequent use in demanding classroom environments. Ideal for Education Environments: Perfect for classrooms, computer labs, and libraries, the IL200 KTC headphones deliver outstanding audio for various learning programs and interactive activities. These headphones make it easier for students to concentrate and engage with digital content. Versatile Compatibility: Featuring a straight, dual-entry 4ft cord with a standard 3.5mm plug, these headphones are compatible with a wide range of devices, including tablets, laptops, smartphones, and media players. Color Options: Available in black and white (black shown here), these headphones blend seamlessly into any classroom environment. Limited Lifetime Warranty: The Koss IL200 KTC headphones are backed by the Koss Stereophones Limited Lifetime Warranty, offering peace of mind for educational institutions and users. Why Choose the Koss IL200 KTC Headphones? The IL200 KTC Interlocking In-Ear Headphones offer the perfect balance of form, function, and durability for educational settings. Their tangle-free design, noise-isolating capabilities, and customizable fit ensure that students can fully immerse themselves in their learning experiences. The Koss Touch Control (KTC) feature makes it easier for students to control their devices and engage with educational content, while the metal construction ensures these headphones withstand the rigors of daily classroom use. Perfect for Schools and ClassroomsDesigned to meet the demands of schools, libraries, and computer labs, these headphones provide exceptional sound quality, comfort, and convenience for all your audio needs. Whether for interactive learning, digital lessons, or standardized testing, the Koss IL200 KTC headphones enhance the learning environment and help students stay focused. Get Your Koss IL200 KTC Headphones Today and experience the next level of educational audio—durable, comfortable, and built to last.

Koss HQ2 Over-Ear Headphones – Unmatched Sound Quality, Maximum Comfort, and Seamless Communication Step up your audio experience with the Koss HQ2 Over-Ear Headphones, designed for those who demand nothing less than superior sound and comfort. Whether you're gaming, working, or engaged in online learning, these headphones deliver a full range of deep bass and crisp treble, ensuring you never miss a beat — or an opponent. Key Features: Dynamic Sound with Deep Bass and Crisp Treble: Enjoy a frequency response of 20-20,000 Hz, delivering rich, clear audio across the entire sound spectrum. The dynamic element provides true stereo sound reproduction, ensuring you hear every detail with precision. Vibration Element for Immersive Experience: Feel the action with the built-in vibration element that translates frequencies below 100 Hz into tactile movement. Adjust the vibration level easily with the thumb wheel control on the left ear cup, enhancing your immersive experience. Clear Voice Technology (CVT) Noise-Canceling Microphone: Stay focused and communicate clearly with the advanced CVT noise-canceling electret condenser microphone. It reduces background noise for superior voice clarity, making it perfect for PC voice applications, gaming, and online communication. Oxygen-Free Copper Voice Coils: Improve signal transmission and conduction for a clean, distortion-free sound with Koss’s high-quality oxygen-free copper voice coils. Comfortable, Over-Ear Design: Large, leatherette ear cups surround your ears, providing maximum isolation from external noise and ensuring long-lasting comfort without pressure, even during extended use. 40-Hour Battery Life: Enjoy uninterrupted sound for up to 40 hours, whether you're gaming, working, or listening to music, with no need for frequent recharging. Ideal for Education & Professional Use: Perfect for remote learning, virtual meetings, or gaming, these headphones help you stay focused on your goals. Why Choose the Koss HQ2 Headphones? Unrivaled Sound Quality: Hear every detail with deep bass and clear treble, ensuring an immersive audio experience. Enhanced Comfort: Soft, leatherette ear cushions and adjustable design for maximum comfort during long sessions. Clear Communication: The CVT noise-canceling microphone ensures clear, distortion-free voice transmission. Durable & Reliable: Backed by the Koss Limited Lifetime Warranty for peace of mind. Specifications: Frequency Response: 20-20,000 Hz Vibration Element: For tactile sound experience Dynamic Stereo Sound Reproduction: Superior audio quality Clear Voice Technology (CVT) Microphone: Noise-canceling electret condenser mic Battery Life: Up to 40 hours of continuous use Oxygen-Free Copper Voice Coils: Enhanced signal quality Comfort: Soft, leatherette ear cushions Warranty: Koss Limited Lifetime Warranty Upgrade your audio experience with the Koss HQ2 Over-Ear Headphones and hear your opponents before they even know you’re there. Perfect for gamers, educators, and anyone looking for exceptional sound quality and comfort — at work, play, or study.

KE5k Lightweight Earbuds: Durable, Comfortable, and Perfect for School Use Discover the ideal earbuds for students with the KE5k Lightweight Earbuds—engineered for comfort, durability, and top-notch sound quality. Whether for classroom activities, online learning, or personal study time, these earbuds are designed to meet the unique needs of students across all age groups. Key Features: Designed for Active Listening: The KE5k earbuds are lightweight and portable, making them the perfect choice for students on the go. Whether in the classroom, library, or during remote learning, they offer an easy and comfortable listening experience. Available in Two Classic Colors: Choose from sleek white or stylish black to suit your personal or school’s aesthetic. Ideal for Audio Learning: With high-quality sound reproduction, the KE5k earbuds are perfect for educational content, audiobooks, online courses, and interactive lessons. Durable and Convenient Cord: The straight, dual-entry 4-foot cord provides ample length for flexibility and movement, while the standard 3.5mm plug ensures broad compatibility with most mobile devices, tablets, and computers. Koss Limited Lifetime Warranty: Backed by Koss’s renowned limited lifetime warranty, these earbuds offer you long-lasting durability and peace of mind. Specifications: Frequency Response: 60-20,000 Hz for a wide range of audio clarity Impedance: 16 Ohms, ensuring efficient power use Sensitivity: 98dB SPL for clear and crisp sound Cord Length: 4 feet, providing flexibility without tangled wires Why Choose KE5k Earbuds? The KE5k Lightweight Earbuds are designed to deliver excellent sound quality while ensuring a comfortable fit for students of all ages. Their compact, portable design makes them ideal for active learning environments, while their durable construction ensures they can withstand daily use. Perfect for classrooms, remote learning, or personal study time, these earbuds combine functionality with value. Invest in reliable, student-friendly earbuds today—designed to enhance educational experiences with superior sound and comfort. Covered by Koss's Limited Lifetime Warranty, the KE5k earbuds are a smart choice for long-lasting performance. Minimum Order: 10

Koss KE7 Two-Pack Earbuds – High-Quality Sound for Education & Everyday Use Looking for affordable, durable, and high-quality earbuds for your classroom, lab, or personal use? The Koss KE7 Two-Pack Earbuds offer superior stereo sound, a comfortable fit, and reliable performance—all at a budget-friendly price. Whether you're a teacher, student, or professional, these earbuds provide an excellent audio experience for testing, learning, and everyday listening. Key Features & Benefits: Affordable & Budget-Friendly: Perfect for schools and educational institutions looking to stretch their budget without sacrificing quality. The two-pack design offers excellent value for large classrooms or group settings. Versatile Compatibility: With a standard 3.5mm plug, these earbuds work seamlessly with mobile devices, computers, tablets, and other devices equipped with a headphone jack, making them a versatile choice for all your audio needs. Clear, High-Quality Stereo Sound: Designed for optimal sound performance, the Koss KE7 earbuds provide rich stereo audio, ideal for educational programs, testing, student placement, and everyday listening. Stylish & Practical: The KE7 earbuds come in two colors—white and black—so you can choose the style that suits you best. Whether for classroom distribution or personal use, they’re perfect for any situation. Koss Limited Lifetime Warranty: Backed by the Koss Limited Lifetime Warranty, you can trust that these earbuds are built to last and provide reliable audio performance over time. Ideal for Testing & Learning: These earbuds are an excellent choice for standardized testing, student assessments, or educational activities where clear audio is crucial for success. Specifications: Frequency Response: 60-20,000 Hz Impedance: 16 ohms Sensitivity: 98 dB SPL Cord Length: Straight, Dual Entry, 4ft for flexibility and convenience Plug Type: 3.5mm Standard for wide compatibility The Koss KE7 Two-Pack Earbuds are the perfect solution for educational environments, budget-conscious consumers, or anyone looking for quality earbuds at an affordable price. Whether you need them for classroom use, virtual learning, or on-the-go listening, these earbuds deliver reliable performance and value. Order Now and enjoy the perfect combination of high-quality sound and unbeatable value with the Koss KE7 Two-Pack Earbuds! Minimum Order: 10

Koss Earbuds: Superior Sound Quality, Comfortable Fit, and Ideal for Students Elevate the learning experience with Koss Earbuds, designed to provide exceptional sound quality and a secure, comfortable fit for students of all ages. These earbuds offer the perfect balance of performance, comfort, and durability, making them a top choice for classroom settings, remote learning, and digital education. Key Features: Enhanced 13mm Driver for Superior Sound: Enjoy crisp, clear audio with the 13mm enhanced driver, delivering superior sound quality across a wide frequency range. Perfect for lessons, audiobooks, online tests, and multimedia content. Customizable Fit for All Ages: With three cushion sizes (small, medium, and large), these earbuds offer a personalized, comfortable fit for students of different ages and ear sizes. Secure & Comfortable: Designed for long-lasting comfort, the soft, flexible ear cushions provide a snug fit that stays in place throughout study sessions, minimizing distractions. Durable 4-ft Cord: The 4-foot straight cord allows for ample movement, while the dual-entry design reduces tangling. The 3.5mm plug ensures easy compatibility with most mobile devices, tablets, computers, and audio equipment. Built to Last: Backed by the Koss Limited Lifetime Warranty, these earbuds are built for everyday use in educational environments, offering long-term reliability. Specifications: Frequency Response: 16 - 20,000 Hz for a wide audio range Impedance: 32 Ohms, optimizing audio efficiency Sensitivity: 106 dB SPL for clear, dynamic sound Cord: 4ft Dual-Entry Cord with a 3.5mm plug for easy connectivity Why Choose Koss Earbuds? The Koss Earbuds provide a reliable, high-quality audio solution for students and educators. Whether you're using them in the classroom, for online learning, or for testing, these earbuds offer excellent sound reproduction and a customizable fit to ensure comfort for extended use. Perfect for Educational EnvironmentsWith their comfortable ear cushions, superior sound quality, and versatile compatibility, Koss earbuds are an excellent investment for schools, libraries, and learning centers. Invest in quality and comfort today with Koss Earbuds, backed by a Limited Lifetime Warranty, and enhance your students' audio learning experience. Minimum Order: 10

Koss SB40 Full-Size Communication Headset with Noise-Canceling Microphone – Premium Sound & Comfort for Gamers and Professionals Take your audio experience to the next level with the Koss SB40 Communication Headset. Designed for gamers, students, and professionals alike, this full-size headset offers superior sound quality and unbeatable comfort. Whether you’re battling in virtual worlds, engaging in online meetings, or studying in a library, the SB40 delivers crystal-clear audio and noise-free communication for all your needs. Key Features & Benefits: Premium Sound Quality: The Koss SB40 headset is equipped with a dynamic audio element that provides rich, full-range sound. From booming bass to crisp treble, enjoy clear, immersive audio that brings your games, music, and voice chats to life at all volume levels. Noise-Canceling Microphone: The built-in noise-canceling microphone eliminates background distractions, ensuring crystal-clear communication. Whether you're streaming, gaming, or participating in virtual classes, your voice will be heard with exceptional clarity, without unwanted interference. Comfortable Leatherette Ear Cushions: The soft, leatherette ear cushions envelop your ears for ultimate comfort, even during long sessions. These plush ear pads also offer excellent noise isolation, blocking out ambient sounds so you can fully focus on your game, work, or learning. Adjustable Headband for a Perfect Fit: The adjustable headband provides a secure and comfortable fit for users of all head sizes. Enjoy hours of use without feeling discomfort or pressure, whether you're gaming or studying. Versatile Connectivity: The independent 3.5mm plugs make it easy to connect your headset to a variety of devices, including PCs, gaming consoles, and smartphones. The separate headphone and microphone jacks ensure compatibility with voice applications, such as speech recognition and PC voice chat. Durable & Long-Lasting: Built to withstand daily use, the SB40 headset is engineered for durability. Backed by Koss’s Limited Lifetime Warranty, you can trust this headset to last for years of use. Why Choose the Koss SB40 Communication Headset? Designed for both performance and comfort, the Koss SB40 headset is perfect for a variety of environments, including gaming, online meetings, virtual classrooms, and more. With a noise-canceling microphone, premium sound quality, and exceptional comfort, it’s the ideal choice for anyone who needs high-quality audio and communication. Whether you're a passionate gamer, a remote worker, or a student, the Koss SB40 headset ensures you have the tools you need to succeed. Don’t settle for less – experience the premium sound, comfort, and reliability of the Koss SB40.

Koss KMO15 On-Ear Headphones – Superior Sound, Stylish Design, and Outdoor-Ready Durability Take your audio experience to the next level with the Koss KMO15 On-Ear Headphones. Perfectly designed for outdoor enthusiasts, these headphones combine exceptional sound quality with a rugged, contemporary look. Whether you’re hiking, camping, or just enjoying the great outdoors, the KMO15 headphones deliver the Sound of Koss in a style that matches your adventures. Key Features & Benefits: Outdoor-Inspired Design: Available in the iconic Mossy Oak Break-Up Infinity® Green and Break-Up® Pink patterns, these headphones bring a bold, outdoor look that matches your active lifestyle while delivering premium sound. Perfect for nature lovers and hunters alike. Superior Sound Quality: Equipped with dynamic elements, the KMO15 headphones offer extended frequency response, providing clear highs and deep lows. Whether you’re listening to music, podcasts, or nature sounds, enjoy rich, immersive audio. Convenient In-Line Volume Control: Adjust your volume on the go with the built-in in-line volume control. No need to reach for your device—control your sound directly from the headphone cord for added convenience. Portability and Foldable Design: The KMO15 headphones are designed to fold flat, making them easy to pack and take anywhere. Whether you’re heading to the trail or traveling, these headphones are built for portability without sacrificing sound quality. Universal Compatibility: Featuring a straight 4-foot cord with a standard 3.5mm plug, the KMO15 is compatible with most audio devices, from smartphones and tablets to MP3 players and radios. Durable and Lightweight: Weighing just 4.8 ounces, these lightweight headphones are designed for comfort and durability, ensuring they stay secure during active use without feeling heavy or cumbersome. Koss Limited Lifetime Warranty: Enjoy peace of mind with the Koss Limited Lifetime Warranty, ensuring that your headphones are protected for years to come. Specifications: Dimensions: 9.9 x 1.6 x 7.3 inches Weight: 4.8 ounces Whether you're exploring the great outdoors or simply want a stylish, comfortable headphone for everyday use, the Koss KMO15 On-Ear Headphones offer the perfect combination of durability, portability, and high-quality sound. Order your Koss KMO15 headphones today and experience the Sound of Koss with a twist of adventure!

Koss KE10 Earbuds – Stylish, Comfortable, and High-Quality Sound Looking for high-quality, affordable earbuds that deliver clear audio and a sleek, comfortable fit? The Koss KE10 Earbuds are the perfect choice for mobile devices, tablets, and computers. Available in a range of vibrant colors, these earbuds offer a stylish design without compromising on sound quality or comfort. Whether you're listening to music, attending online classes, or enjoying podcasts, the Koss KE10 earbuds provide the ideal audio solution. Key Features & Benefits: Stylish & Versatile Colors: Choose from a variety of eye-catching colors, including blue, coral, mint, pink, violet, and white, to match your personal style or device. These earbuds are as fashionable as they are functional. Comfortable & Secure Fit: The soft, sculpted earbud design ensures a comfortable and secure fit, perfect for extended listening sessions without discomfort. Compact & Durable: The slim design of the KE10 earbuds makes them easy to carry and store, while the durable construction ensures they can handle everyday use without wear and tear. Universal Compatibility: Equipped with a 3.5mm plug, these earbuds work seamlessly with a wide range of devices, including smartphones, tablets, laptops, and other devices with a standard headphone jack. Koss Limited Lifetime Warranty: These earbuds are backed by Koss's trusted Limited Lifetime Warranty, offering you peace of mind with every purchase. Ideal for On-the-Go Listening: Whether you're using them for mobile devices, music, calls, or educational programs, the Koss KE10 earbuds are perfect for both personal and professional use. Specifications: Frequency Response: 40-20,000 Hz for rich, clear sound Impedance: 32 ohms for optimal audio performance Sensitivity: 100 dB SPL/1mW for high-volume, distortion-free sound Cord: Straight, dual entry, 4ft cord for flexible movement The Koss KE10 Earbuds offer unbeatable style, comfort, and performance for an affordable price. Perfect for students, professionals, and anyone on the go, these earbuds will meet all your audio needs. Order Now and enjoy superior sound and style with the Koss KE10 Earbuds! Minimum Order: 10

Koss UR23i Over-Ear Headphones The Koss UR23i Over-Ear Headphones offer a durable and comfortable listening experience, making them ideal for classrooms, remote learning, and personal use. With their closed-back design and 40mm drivers, they deliver clear, immersive sound while minimizing external noise. Key Features 40mm Drivers: Provide clear and immersive sound quality. Closed-Back Design: Helps minimize external noise for focused listening. In-Line Microphone: Allows for hands-free communication during calls or online classes. Durable Construction: Built to withstand daily use in educational environments. Comfortable Fit: Over-ear design with soft ear cushions for extended wear. 4-Foot Flat Cable: Tangle-resistant cable for easy storage and mobility. 3.5mm Audio Jack: Compatible with a wide range of devices. Available in Multiple Colors: Choose from black, white, blue, green, and yellow to suit your preference. Specifications Driver Size: 40mm Frequency Response: 20Hz – 20kHz Impedance: 34Ω Sensitivity: 94dB Microphone: In-line, omnidirectional Cable Length: 4 feet (~1.2 meters) Connector: 3.5mm stereo plug Weight: Approximately 131g Warranty: Limited lifetime warranty We accept Purchase Orders and offer volume pricing. Free shipping on orders within the 48 contiguous U.S. All units undergo quality assurance checks.