Koss KSC-21
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The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Koss 2025 - new arrivals, bestsellers, and the most relevant models Koss.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Koss 2025 - new arrivals, bestsellers, and the most relevant models Koss.
What characteristics should good headphones have?Guide to key features of headphones
How to choose a gaming headphoneWe understand the differences between regular and gaming headphones, tell you how to approach the choice of a headset wisely
Buy Koss KSC-21
All prices 8 →When you make a purchase through links on our site, we may receive a affiliate commission.
Koss KSC21 Ear Clip Headphones KSC21W | $15.34 |  | |||
Koss On-Ear Headphones 1 pk KSC21K | $9.99 |  | |||
Koss On-Ear Headphones 1 Pack KSC21K | $11.18 |  | |||
Koss KSC21 Ear Clip Headphones - Stereo - Mini-phone - Wired - 36 Ohm - 50 Hz 18 kHz - Over-the-ear - Binaural - Supra-aural | $12.99 |  | |||
Koss KSC21 Lightweight Ear-Clip Headphones, Silver 190056 | $9.99 |  | |||
Video reviews
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We recommendCompare using chart →
overhead, closed, wired, 3.5 mm, 1.2 m, foldable, 10 – 24000 Hz, 24 Ohm, 1000 mW, L-plug, battery: with case + maximum
overhead, closed, wired, 3.5 mm, 6.35 mm, 3 m, no microphone, foldable, 10 – 20000 Hz, 63 Ohm, 1000 mW, battery: with case + maximum
in-ear, wireless, Bluetooth v 5.0, AAC, voice assistant, waterproof, 20 – 20000 Hz, battery: up to 25 h
overhead, closed, combined, detachable cable, 3.5 mm, 1.2 m, Bluetooth v 5.0, AAC, game mode, 5 – 32000 Hz, 36 Ohm, L-plug, battery: up to 60 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v 5.3, active noise cancellation, foldable, 20 – 20000 Hz, 32 Ohm, 45 degree angle plug, battery: 690 mAh, up to 44 h
студийные, overhead, closed, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, foldable, 15 – 28000 Hz, 38 Ohm, 1600 mW, battery: with case + maximum
overhead, closed, wired, 3.5 mm, 1.2 m, no microphone, foldable, 12 – 22000 Hz, 24 Ohm, L-plug
overhead, closed, wireless, Bluetooth v 5.2, AAC, aptX, active noise cancellation, voice assistant, 10 – 22000 Hz, battery: 800 mAh, up to 50 h
overhead, closed, combined, detachable cable, 2.5 mm (micro-Jack), Bluetooth v 5.1, AAC, active noise cancellation, voice assistant, foldable, battery: up to 24 h
gaming, overhead, closed, wireless, radio channel, 15 – 21000 Hz, 62 Ohm, battery: up to 300 h