--- product_id: 3661666 title: "QZ-99 Noise Reduction Stereophone, Standard Packaging,Black" brand: "koss" price: "€ 120.26" currency: EUR in_stock: true category: "Koss" url: https://www.desertcart.pt/products/3661666-qz-99-noise-reduction-stereophone-standard-packaging-black store_origin: PT region: Portugal --- # 8-ft Coiled Cord Passive Noise Reduction On-ear Volume Control QZ-99 Noise Reduction Stereophone, Standard Packaging,Black **Brand:** koss **Price:** € 120.26 **Availability:** βœ… In Stock ## Summary > πŸ”Š Block the noise, boost your focus β€” the Koss QZ99 is your silent power move. ## Quick Answers - **What is this?** QZ-99 Noise Reduction Stereophone, Standard Packaging,Black by koss - **How much does it cost?** € 120.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/3661666-qz-99-noise-reduction-stereophone-standard-packaging-black) ## Best For - koss enthusiasts ## Why This Product - Trusted koss brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Freedom to Move:** 8-foot coiled cord offers tangle-free reach, perfect for dynamic workspaces or active setups. - β€’ **Flexible Listening Modes:** Stereo/mono switch adapts effortlessly to your audio needs and environments. - β€’ **Silence the Noise, Own Your Focus:** Advanced passive noise isolation blocks ambient distractions for crystal-clear listening. - β€’ **Built to Last, Designed for Comfort:** Durable metal enclosure with Pneumaliteβ„’ cushions ensures all-day wear without compromise. - β€’ **Precision Volume at Your Fingertips:** Integrated earcup volume control lets you fine-tune sound without missing a beat. ## Overview The Koss QZ-99 Noise Reduction Stereophone delivers industry-leading passive noise isolation with a frequency response of 40-20,000 Hz, perfect for professionals needing focused listening in noisy environments. Featuring an on-ear volume control, stereo/mono switch, and an 8-foot coiled cord, it combines durable construction and ergonomic design to provide reliable, comfortable audio performance ideal for use with racing scanners, metal detectors, and critical listening tasks. ## Description Product Description Product Description The QZ99 Passive Noise-Reducing Over-Ear Headphones from KOSS are designed to make the world disappear. Pneumalite(TM) ear cushions and an extra-secure headband help with passive sound isolation, allowing for listening without outside noise. A volume control is located on the ear cup for maximum ease of use.The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal. Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord. From the Manufacturer New advances in materials and design have served to expand the performance of stereophones. Koss' Product Development team and engineers look for the most innovative combinations of existing and new technologies to deliver the most exciting products possible. Features Frequency Response: 40-20,000 Hz Passive Noise Reduction stereophone system isolates listener from ambient sounds Ideal for use with racing scanners and metal detectors Volume control on ear cup for easy level adjustment Stereo/Mono switch for added flexibility Single entry, 8 foot coiled cord The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal. Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord. desertcart.com The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal. Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer New advances in materials and design have served to expand the performance of stereophones. Koss' Product Development team and engineers look for the most innovative combinations of existing and new technologies to deliver the most exciting products possible.Features Frequency Response: 40-20,000 Hz Passive Noise Reduction stereophone system isolates listener from ambient sounds Ideal for use with racing scanners and metal detectors Volume control on ear cup for easy level adjustment Stereo/Mono switch for added flexibility Single entry, 8 foot coiled cord See more ## Features - Quiet Zone QZ99 Passive Noise Reduction - Passive noise reduction stereophone system isolates listener from ambient sounds - Volume control on earcup for easy level adjustment - Ideal for use with racing scanners and metal detectors - Stereo/mono switch for added flexibility - Single-entry, 8-foot coiled cord ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000051SD1 | | Additional Features | Volume Control | | Age Range Description | Adult | | Antenna Location | Music, Travel | | Audio Driver Type | Dynamic Driver | | Best Sellers Rank | #47,025 in Electronics ( See Top 100 in Electronics ) #1,236 in Over-Ear Headphones | | Brand Name | Koss | | Built-In Media | Cable | | Cable Features | Retractable | | Color | Black | | Compatible Devices | Laptops, Desktops, Tablets, Cellphones, Music Production Equipment | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Volume Control | | Controller Type | Wired | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.2 4.2 out of 5 stars (922) | | Earpiece Shape | Rounded tip | | Enclosure Material | Metal | | Frequency Range | 40 Hz - 20 kHz | | Global Trade Identification Number | 00021299134122 | | Headphone Folding Features | Over Ear | | Headphone Jack | 3.5 mm Jack | | Headphones Ear Placement | On Ear | | Impedance | 60 ohm | | Item Weight | 15 ounces | | Manufacturer | KOSS | | Model Name | Noise-Cancelling-Feature | | Model Number | QZ99 | | Noise Control | Passive Noise Cancellation | | Number of Items | 1 | | Number of Power Levels | 1 | | Sensitivity | 102 db | | Theme | NA" or "NO | | UPC | 600682779975 088037836168 172304341360 851025056721 021299134122 689076196277 887492361235 001910136773 100177327907 172302808155 014444735268 339335142063 601000776720 809185286946 971471412190 021113052090 809385136706 763615963268 102930993589 055555559442 962327261666 168141622397 807032926472 851975696558 | | Unit Count | 1 Count | | Warranty Description | Lifetime | | Water Resistance Level | Not Water Resistant | | Wireless Technology | Bluetooth | ## Product Details - **Brand:** Koss - **Color:** Black - **Ear Placement:** On Ear - **Form Factor:** Over Ear - **Impedance:** 60 ohm ## Images ![QZ-99 Noise Reduction Stereophone, Standard Packaging,Black - Image 1](https://m.media-amazon.com/images/I/914W2oi686L.jpg) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/3661666-qz-99-noise-reduction-stereophone-standard-packaging-black](https://www.desertcart.pt/products/3661666-qz-99-noise-reduction-stereophone-standard-packaging-black) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-17*