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Koss QZPRO Noise-Canceling Headphones – Ultimate Sound Quality with Superior Noise Reduction Experience the next level of audio with the Koss QZPRO Noise-Canceling Headphones. Designed for those who demand peace and superior sound, these headphones combine both passive and active noise reduction (ANR) to provide an immersive listening experience. Whether you're in a noisy classroom, on a busy commute, or just relaxing at home, the QZPRO headphones create a quiet, focused environment, so you can enjoy your music or content without distractions. Key Features: Advanced Noise-Canceling Technology: The Koss QZPRO headphones use both passive and active noise reduction (ANR) technology. Closed leatherette ear cushions block ambient noise, while the active noise cancellation circuitry detects and counteracts unwanted sounds, creating a peaceful listening environment. When you don’t need the noise cancellation, simply switch it off for traditional passive noise isolation. Exceptional Sound Quality: With a full frequency response of 40Hz-20,000Hz, the QZPRO headphones deliver balanced sound with deep bass, rich midrange, and sparkling treble. Whether you’re listening to music, watching videos, or studying, these headphones offer remarkable clarity and precision. Long-Lasting Comfort: The extra-soft, padded headband and closed ear cushions provide a comfortable fit, perfect for extended listening sessions. These headphones are designed to keep you comfortable, even during long flights or study marathons. Collapsible & Portable: The QZPRO headphones are fully collapsible, making them easy to store and carry. Whether you’re traveling or need to save space, these headphones are designed for convenience and portability. Up to 30 Hours of Continuous Play: Enjoy uninterrupted listening for up to 30 hours on a single charge. These headphones are built for long-lasting performance, so you can keep the music going through your day. Versatile & Compatible: Includes a 4-foot straight single-entry cord with an adapter, making these headphones compatible with a variety of devices, including smartphones, tablets, and airline entertainment systems. Specifications: Frequency Response: 40Hz-20,000Hz for a full range of deep bass and treble clarity Noise Reduction: Passive and active noise cancellation technology for a quiet listening experience Battery Life: Approximately 30 hours of continuous play on a single charge Comfort: Extra-soft, padded headband and closed ear cushions for all-day comfort Portability: Fully collapsible design for easy storage and travel Cord: 4-foot straight, single-entry cord with airline adapter Warranty: Covered by the Koss Stereophones Limited Lifetime Warranty Why Choose Koss QZPRO Noise-Canceling Headphones? The Koss QZPRO headphones aren’t just about noise cancellation; they deliver exceptional sound quality and comfort for extended listening. Whether you’re using them for work, travel, or entertainment, these headphones offer unmatched performance and convenience. With advanced noise-canceling technology, high-quality sound, and long-lasting comfort, the QZPRO headphones are the perfect choice for anyone seeking peace and clarity in their audio experience. Order your Koss QZPRO Noise-Canceling Headphones today and enjoy ultimate sound with unbeatable noise reduction! Minimum Order: 3

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.

The QZ99 Passive Noise Reduction headphones sport neodymium magnet structures that deliver outstanding clarity and definition. The closed Pneumalite™ ear cushions and extra-secure headband create a tight seal around the ear eliminating all ambient noise. Durable and built to withstand the rigors of indoor and outdoor use, the Koss QZ99 also includes a volume control on the ear cup that makes adjusting sound levels a snap, and a stereo/mono switch that extends user flexibility. Sporty and strong with superior sound quality, these Passive Noise Reduction headphones are every audiophile's dream. Features: Passive Noise Reduction technology for excellent isolation Over-the-head, extra-secure headband design Volume control on ear cup Includes 8 foot, coiled, single-entry cord Compatible with most radios and scanners Koss Limited Lifetime Warranty Specifications: Neodymium magnet structures deliver outstanding clarity and definition Closed Pneumalite™ ear cushions and extra-secure headband seal ears, eliminate all ambient noise Volume control on ear cup allows easy level adjustment Stereo/mono switch extends user flexibility Includes 8 foot, coiled, single-entry cord with 3.5 mm plug and 6.3 mm adapter Covered under the Koss Stereophones Limited Lifetime Warranty

The HamiltonBuhl W901-Multi is a wireless multi-channeled headphone designed to deliver superb sound quality without antennas, wires, or interference. Featuring comfort-wear soft leatherette cushions, a deluxe over-ear, noise-isolating design, and a classroom-friendly internal NiMH battery, this headphone is ideal for educational environments. Key Features Multi-Channel Reception: Receives 4 dedicated, color-coded FM frequencies (72.500 MHz, 72.100 MHz, 72.900 MHz, 74.700 MHz), allowing easy switching between multiple audio channels. Wireless Freedom: No antenna on the headphone, providing a clean and comfortable listening experience. Long Battery Life: Approximately 18-19 hours of listening time with about 5 to 5.5 hours of charging time. Superior Sound Quality: Frequency response of 20-20,000 Hz and sensitivity of 100dB ±3dB for clear and rich audio. Classroom-Friendly Design: Powered by an internal NiMH battery, making it safe and easy to use in educational settings. Important Notes Compatibility: The W901-Multi headphone must be used with the W900-Multi transmitter. If adding to an existing 6-person Listening Center, ensure you have an additional AC power adapter (W980) and a 6-way charging cable, as one AC power adapter can charge only up to 6 headphones. Shipping Restrictions: Due to the inclusion of a Lithium-Ion Battery, when shipping outside of the continental U.S., such as Alaska, Hawaii, Puerto Rico, or any destination on an island (e.g., Avalon, CA), it must ship via 2nd Day Air ONLY. Specifications Charging Time: Approximately 5-5.5 hours Operating Time: Approximately 18-19 hours Frequency Response: 20-20,000 Hz Sensitivity: 100dB ±3dB Impedance: 32Ω Power Source: Internal NiMH battery Warranty: 1 Year

The TD85 Multiple Use Headphones deliver premium sound, comfort, and durability—designed for classrooms, libraries, and shared environments. With high-quality materials and thoughtful construction, students can stay immersed in audio content without distractions. Why classrooms like the TD85 Oxygen‑free copper voice coils ensure cleaner, more accurate audio Rich frequency response (20 Hz to 17 kHz) for comprehensive listening Adjustable headband + large leatherette ear cushions for comfort Noise reduction & sound isolation minimize external distractions Durable steel yokes keep the design sturdy yet lightweight Kevlar‑reinforced coiled 8‑ft cable plus gold‑flashed 3.5 mm plug with 6.3 mm adapter Covered by Koss Limited Lifetime Warranty Compatibility & Use The TD85 works with any device supporting a 3.5 mm stereo plug. Use with laptops, tablets (via adapter if needed), audio systems, and more. If your device lacks a headphone jack (USB‑C only), pair with a USB audio adapter or choose a compatible model. Care & Maintenance Wipe cushions and headband with a soft cloth or lightly damp disposable sanitizing wipe. Do not submerge or expose to moisture. Store in a cool, dry place to preserve materials’ integrity. Tech Specs Voice coils: Oxygen‑free copper Frequency response: 20 Hz – 17 kHz Construction: Steel yokes + lightweight design Cable: Kevlar‑reinforced, coiled 8 ft (~2.4 m) Plug: Gold-flashed 3.5 mm stereo with included 6.3 mm adapter Ear cushions: Leatherette over foam, large size Warranty: Koss Limited Lifetime Warranty

The Green Wireless Headphone allows students to incorporate audio into their learning, ideal for classroom, library, or computer lab settings. While reducing sounds through cushioned ear cups, users can focus on their audio with little outside distraction.  The CLS729 Wireless Mono Headphones from Califone are ideal for use in classrooms and other institutional venues. The headphones use RF technology to receive wireless audio from a receiver (sold separately) from up to 100' away! The headphones come tuned to 1 of 4 different color-coded frequencies, providing the potential to set up 4 different audio programs in the same area without crossover or interference. An unlimited number of headphones may be used with a transmitter. The headphones are constructed from durable ABS plastic. Featuring an adjustable headband and easily cleaned around-ear cushions, the CLS729 provides long-lasting comfort. Built-in volume control allows each listener to select their own loudness without affecting others in the group. The rechargeable NiMH batteries provide up to 6 hours of use before needing to be recharged.   Features: Color: green Color-coded RF mono headphones with up to 100' wireless range Up to 4 transmitters (sold separately) can be used in one area without interference or crossover Add an unlimited number of headphones to a single transmitter Durable ABS plastic construction Adjustable headband Cleanable around-ear cushions provide excellent comfort and noise isolation Built-in volume control Rechargeable battery provides up to 6 hours of operation Warranty valid for 1 year for use in schools, churches, businesses, and government facilities

Minimum Order Quantity These headphones are intended for classroom and program purchasing and are sold in bulk packs. Minimum order: 10+ units (or a listed bulk pack size). Maxell Bass 13 Heavy Bass Headphones with Mic – 40mm Drivers & Noise-Isolating Earpads Overview The Maxell Bass 13 Heavy Bass Headphones with Microphone are designed to deliver an immersive listening experience with deep, powerful low-end sound. Equipped with large 40mm dynamic drivers, these headphones provide full-range audio suitable for music, videos, and spoken content. Soft, cushioned ear pads help reduce outside noise through passive noise isolation, allowing students and users to stay focused in shared environments. A built-in microphone supports hands-free calls and voice-based applications, making these headphones a versatile choice for both educational and everyday use. 🎧 Key Features 40mm dynamic drivers: Deliver deep bass with clear mids and highs. Heavy bass tuning: Enhanced low-frequency response for music and multimedia. Noise-isolating ear pads: Soft cushions help block out ambient noise. Built-in microphone: Supports calls, voice tools, and online learning. Comfortable over-ear design: Suitable for extended listening sessions. 🏫 Suitable For Classrooms and computer labs Libraries and media centers Online learning and digital coursework Music, videos, podcasts, and everyday listening 📦 Product Details Feature Details Brand Maxell Driver Size 40mm Microphone Built-in inline microphone Fit Style Over-ear with soft noise-isolating pads

Minimum Order Quantity: 5 Units This product is sold with a minimum purchase requirement of five (5) units. This minimum helps us support school, classroom, and institutional buyers while maintaining consistent pricing and availability. If you need assistance with larger quantities or purchase orders, please contact us and our team will be happy to help. Maxell Bass13 Wireless Headphones – Enhanced Bass, 40mm Drivers & 20-Hour Battery Overview The Maxell Bass13 Wireless Headphones deliver a powerful, bass-enhanced listening experience in a convenient wireless design. Equipped with large 40 mm dynamic drivers, these headphones provide immersive, full-range sound suitable for music, videos, and spoken content. Soft, noise-isolating ear pads help reduce background distractions in shared environments, while a built-in microphone with inline volume control supports hands-free calling and voice-based applications. With up to 20 hours of play or talk time, the Bass13 Wireless Headphones are designed for extended daily use without frequent recharging. 🎧 Key Features Wireless audio: Enjoy freedom of movement without cables. 40 mm dynamic drivers: Deliver deep bass with clear mids and highs. Enhanced bass tuning: Ideal for music, multimedia, and video content. Noise-isolating ear pads: Soft cushions help block ambient noise. Built-in microphone with volume control: Supports calls and voice use. Up to 20 hours of battery life: Long-lasting performance for all-day use. 🏫 Suitable For Classrooms and computer labs Libraries and media centers Online learning and digital coursework Music, videos, podcasts, and everyday listening Note: As a wireless headphone, this product may not be suitable for testing environments that require wired or fully sound-isolating audio equipment. 📦 Product Details Feature Details Brand Maxell Connection Wireless (Bluetooth) Driver Size 40 mm Microphone Built-in mic with inline volume control Battery Life Up to 20 hours (play/talk time)

Minimum Order Quantity: 5 Units This product is sold with a minimum purchase requirement of five (5) units. This minimum helps us support school, classroom, and institutional buyers while maintaining consistent pricing and availability. If you need assistance with larger quantities or purchase orders, please contact us and our team will be happy to help. Maxell Bass 13 Active Noise Cancelling Wireless Headphones – Bluetooth ANC with Detachable Boom Mic Overview The Maxell Bass 13 Active Noise Cancelling Wireless Headphones are designed for users who need reduced background noise and clear audio in busy or shared environments. Featuring Active Noise Cancellation (ANC), these headphones help minimize surrounding noise so users can better focus on music, podcasts, meetings, lessons, or other audio content. With wireless Bluetooth connectivity, a comfortable over-ear fit, and up to 10 hours of playtime, the Bass 13 ANC headphones are built for extended daily use. A detachable boom microphone provides clear voice pickup for calls, virtual meetings, and online learning, making them a versatile choice for office, school, and home settings. 🎧 Key Features Active Noise Cancellation (ANC): Helps reduce consistent background noise for improved focus. Wireless Bluetooth connection: Cable-free listening and mobility. Detachable boom microphone: Designed for clear voice communication during calls and meetings. Up to 10 hours of battery life: Reliable performance for a full day of use. Comfortable over-ear design: Suitable for extended wear in classrooms, offices, or at home. 🏫 Suitable For Classrooms and computer labs Libraries and quiet study areas Offices and remote work environments Online learning, virtual meetings, and everyday listening Note: Active Noise Cancellation helps reduce steady background sounds but does not eliminate all noise. As a wireless headphone, this model may not be appropriate for testing environments that require wired connections. 📦 Product Details Feature Details Brand Maxell Connection Wireless (Bluetooth) Noise Reduction Active Noise Cancellation (ANC) Microphone Detachable boom microphone Battery Life Up to 10 hours

Sony MDR-ZX310AP Stereo Headphones with Mic The Sony MDR-ZX310AP adds an in-line microphone and controls to a compact on-ear headphone, making it useful for language apps, video calls, and blended learning where students both listen and speak. At a glance Connection: 3.5 mm TRRS (audio + mic) wired Driver size: 30 mm dynamic dome Frequency response: 10 Hz – 24,000 Hz Impedance: 24 Ω at 1 kHz Cord length: 1.2 m (approx. 3.9 ft), Y-type Microphone: In-line electret condenser, omni-directional Key features for education Built-in microphone supports speaking practice and simple recordings. Good fit for virtual learning, video calls, and online collaboration. Lightweight, folding on-ear design is easy to store and move between rooms. Balanced stereo sound for lessons, media, and apps. Compatibility and connection The 4-pole 3.5 mm TRRS plug is designed for many Chromebooks, tablets, and laptops that use a combined audio and microphone jack. For desktops with separate mic and headphone jacks, or USB-C–only devices, schools may need an appropriate adapter or splitter if allowed by district IT. Best use cases Language and literacy apps that record student speech Virtual or hybrid classrooms using video conferencing platforms Students creating simple voice recordings or short presentations Purchasing for schools and districts Learning Headphones offers purchase orders, tax-exempt checkout, and volume pricing. Our team can help you decide when to choose a headset with mic like this versus a listening-only headphone.

Sony MDR-ZX110NC Noise-Cancelling Headphones The Sony MDR-ZX110NC noise-cancelling headphones help students and educators stay focused by reducing distracting ambient sound. Lightweight and foldable, they are a good fit for classrooms, libraries, testing spaces, and travel. At a glance Connection: 3.5 mm wired stereo Driver size: 30 mm dynamic dome Noise cancelling: Helps reduce ambient noise in typical office and transit environments Frequency response: 10 Hz – 22,000 Hz Cord length: 1.2 m (approx. 3.9 ft), Y-type Form factor: On-ear, closed-back, swivel-fold design Key features for education Helps cut down background noise in busy classrooms and shared spaces. Lightweight build with cushioned earcups for longer listening sessions. Fold-flat earcups make storage easier in classroom bins, carts, or cases. Simple plug-and-play 3.5 mm connection for many student devices. Compatibility and connection These headphones use a standard 3.5 mm stereo plug, so they work with many desktops, laptops, Chromebooks, and audio players with a headphone jack. For USB-C–only or Lightning–only devices, schools can use an appropriate adapter based on district standards. Best use cases Focused individual listening in busy classrooms or libraries Small-group work in higher noise environments Teacher or student travel where a quieter listening experience is helpful Purchasing for schools and districts Learning Headphones supports purchase orders, tax-exempt checkout, and volume pricing to make deployment across classrooms and districts simple.

Sony h.ear on MDR-100AAP Premium Hi-Res Stereo Headphones (Lime Yellow) The Sony h.ear on MDR-100AAP headphones combine High-Resolution Audio performance with a bold, modern design and comfortable over-ear fit. With 40 mm HD drivers, titanium-coated diaphragms, and a detachable tangle-resistant cable with in-line mic/remote, they’re a great choice for focused listening, media programs, and higher-fidelity classroom or lab use. :contentReference[oaicite:0]{index=0} At a glance Connection: 3.5 mm TRRS wired (audio + mic) Driver size: 40 mm dynamic dome (Hi-Res compatible) Frequency response: 5 Hz – 60,000 Hz Impedance: 24 Ω at 1 kHz Sensitivity: 103 dB/mW Cord length: 1.2 m (approx. 3.9 ft) Cord type: Detachable, serrated tangle-resistant cable Plug: L-shaped gold-plated 4-pole 3.5 mm mini plug Microphone: In-line electret condenser, omni-directional Wearing style: Over-ear / circumaural, closed-back :contentReference[oaicite:1]{index=1} Key features for education High-Resolution Audio drivers deliver clearer vocals and detail for media, music, and advanced listening curriculum. Over-ear closed-back seal helps reduce distractions compared with open earbuds. Built-in microphone supports virtual learning, language practice, and student voice recordings. Detachable cable makes storage and replacement easier for classroom sets. Comfort-first padding supports longer listening blocks in labs or media rooms. :contentReference[oaicite:2]{index=2} Compatibility and connection The MDR-100AAP uses a 4-pole 3.5 mm TRRS plug for combined audio and mic. It works with most Chromebooks, laptops, tablets, and phones that have a single headset jack. For desktops with separate headphone/mic ports, a headset splitter is needed. USB-C-only devices may require a USB-C to 3.5 mm headset adapter if permitted by district IT. :contentReference[oaicite:3]{index=3} Best use cases Media labs, music/CTE programs, and student production Focused listening during independent or small-group work Virtual learning and collaboration requiring a mic High-fidelity classroom audio for older students Classroom notes Premium listening model: Great when sound quality and comfort are priorities; for heavy day-to-day shared carts, more rugged school-focused models may be preferred. Closed-back fit: Better isolation than open earbuds, but not active noise canceling. Color ID: The “Y” suffix indicates the Lime Yellow colorway. :contentReference[oaicite:4]{index=4} Purchasing for schools and districts Learning Headphones supports purchase orders, tax-exempt checkout, and volume pricing. If you’re choosing headphones for media pathways or high-fidelity classroom use, our team can help you validate device compatibility and program needs.

Sony MDR-7506 Professional Studio Monitor Headphones (Black) The Sony MDR-7506 is a legendary closed-back studio monitor headphone used for decades in broadcast, recording, and live production. It combines a lightweight, foldable design with detailed, “truthful” sound from 40 mm drivers—making it a dependable choice for media labs, music/CTE programs, and any setting where accurate listening matters. At a glance Connection: 3.5 mm TRS wired (listening-only) Driver size: 40 mm dynamic dome Diaphragm: PET + neodymium magnets Frequency response: 10 Hz – 20,000 Hz Impedance: 63 Ω Sensitivity: 106 dB/mW Max power input: 1,000 mW Cord: Fixed coiled cable, extends to ~3.0 m (9.8 ft) Plug: Gold-plated 3.5 mm stereo mini + screw-on 6.3 mm (1/4") adapter Weight: ~230 g (without cable) Included: Soft carry pouch + Unimatch plug adapter :contentReference[oaicite:0]{index=0} Key features for education Studio-accurate sound helps students hear balance, EQ, and detail for editing, mixing, and media critique. :contentReference[oaicite:1]{index=1} Closed-back isolation reduces room noise and sound bleed—great for recording booths and computer labs. :contentReference[oaicite:2]{index=2} Comfort for long sessions with soft ear pads and a lightweight headband. :contentReference[oaicite:3]{index=3} Foldable, durable build stores easily in carts and bags for shared programs. :contentReference[oaicite:4]{index=4} Coiled cable keeps slack off desks while still reaching floor gear or mixers. :contentReference[oaicite:5]{index=5} Compatibility and connection The MDR-7506 uses a standard 3.5 mm stereo plug and works with Chromebooks, laptops, tablets, desktops, audio interfaces, mixers, and cameras that have a headphone jack. The included 1/4" adapter makes it ready for studio gear right out of the box. Best use cases School media labs, broadcast/CTE pathways, and podcast studios Audio/video editing and mixing classrooms Recording environments where isolation matters Critical listening for music tech or film programs Classroom notes No mic: This is a listening-only professional monitor headphone. If students need to speak/record, pair with a separate microphone or choose a headset model. Replaceable pads: Ear cushions are easy to swap, which helps extend life in shared-use programs. Studio voicing: Tuned for accuracy rather than extra bass—ideal for learning and production work. Purchasing for schools and districts Learning Headphones supports purchase orders, tax-exempt checkout, and volume pricing. If you’re outfitting a media lab or student production pathway, our team can help with bundle recommendations (interfaces, mics, monitoring accessories, and carts).

AVID AVIGA AP1000 Headset — innovative sound for future innovators. Built for STEM, STEAM, and esports learning with immersive, crisp audio, a noise-canceling boom mic, and durable construction for all-day focus and collaboration. Why students & teachers love AVID AVIGA AP1000 Headset Immersive sound: Crisp, balanced audio enhances coding, robotics, and simulations. Clear communication: Noise-canceling mic keeps group work and calls seamless. All-day comfort: Lightweight frame, plush over-ear padding, adjustable headband. Passive noise reduction: Secure fit helps reduce classroom distractions. Swivel-to-mute mic: Flip the boom up to mute; down to unmute. Easy volume control: On-earcup wheel simplifies quick adjustments. Pick the right connector 3.5 mm TRRS (analog): Best for devices with a headset jack (many Chromebooks, laptops, desktops). USB-A (digital): Best for devices without an audio jack or when you prefer a digital audio connection. Note: USB-A models are priced higher due to the integrated digital audio interface. Tech specs Model AP-1000 Item # (3.5 mm) AHSP1000TRRS-01K Item # (USB-A) AHSP1000USBA-01K Plug type 3.5 mm TRRS or USB-A Cord Nylon braided, 5 ft / 152.4 cm Ear pads Leatherette, over-ear (circumaural) Headband Padded, adjustable Weight 9.35 oz / 265 g Mic Noise-canceling, bidirectional boom; swivel-to-mute Mic sensitivity -38 dB V/Pa ± 3 dB Warranty 2 years Packing 20 units per case; corrugated box How to use Mute/unmute: Flip the mic boom up to mute; flip down in front of the mouth to unmute. Volume: Use the wheel on the back of the left earcup. Mic placement: Keep the perforated side of the mic facing your mouth, ~1 inch away. FAQ Does the mic mute? Yes. Swivel the boom up to mute, down to unmute. Which connector should I choose? Choose 3.5 mm TRRS for devices with a headset jack. Choose USB-A for desktops/laptops that support USB audio or when you prefer a digital connection.

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.

The Blue Wireless Headphone brings audio to the classroom, perfect for listening to stories, learning a new language, or working with computer programs. The noise-reducing headphones help students focus on the streaming audio, as opposed to the noises around them, also allowing them to keep the volume low. With sturdy construction, educators can use the headphones for school in the years to come. Key Features 100’ wireless reception range from transmitter Ambient noise-reducing earcups diminish external distractions Rugged ABS plastic earcups and head strap for durability Rechargeable batteries Two-year warranty for school use - unlike items purchased from consumer electronics stores whose warranties would be voided if used in schools Specifications Frequency: 72.500 MHz (blue) Speaker Type: Cobalt driver, monaural Earcups Rugged ABS plastic for durability and safety Ear Cushions: Cleanable, foam-filled Battery Type: Sealed, rechargeable nickel-metal hydride Battery Charges: 500 charges Battery life between charges: 6 hours Antenna: Built into each headphone Volume control: Built into each headphone Controls: Power on/off knob; battery level LED Headband: Fully adjustable Shipping weight: for each headphone, 1 lb