Koss BT221i
 | When you make a purchase through links on our site, we may receive a affiliate commission. Buy! Koss BT221i Wireless Bluetooth Ear Clips In-Line Microphone Volume Control and Touch Remote Sweat Resistant Black 196627Amazon.comDelivery: to Redlands Report |
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Swivel ear hooks.
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 2026 - 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 2026 - new arrivals, bestsellers, and the most relevant models Koss.
Everything You Need to Know About Headphones: A Complete Technical GuideThe choice begins with understanding the design and features.
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
Construction. I don't like earbuds, and there are very few over-ear headphones with behind-the-ear mounts. As for the sound, I must say - it's decent sound. Very flimsy. Fell apart in less than a year. The battery is a bit weak.  Anton Alyabev: use Koss BT221i few months |
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in-ear, wireless, true wireless, Bluetooth v5.3, AAC, LDAC, active noise cancellation, voice assistant, waterproof, 20 – 40000 Hz, battery: up to 8 h, with case + only LDAC
студийные, overhead, open, wired, 3.5 mm, 6.35 mm, 3 m, no microphone, 5 – 35000 Hz, 250 Ohm, 100 mW
gaming, PlayStation 5, Switch, overhead, closed, wireless, Bluetooth v5.3, AAC, radio channel, 3D sound, 20 – 20000 Hz, 64 Ohm, battery: up to 200 h
студийные, overhead, closed, wired, 3.5 mm, 6.35 mm, 3 m, no microphone, 15 – 20000 Hz, 47 Ohm, 700 mW, battery: with case + maximum
overhead, closed, combined, detachable cable, 3.5 mm, 1.2 m, Bluetooth v5.0, AAC, game mode, 5 – 32000 Hz, 36 Ohm, L-plug, battery: up to 60 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, 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
in-ear, wireless, true wireless, Bluetooth v5.3, AAC, active noise cancellation, 3D sound, voice assistant, waterproof, 20 – 20000 Hz, battery: up to 8.5 h
gaming, overhead, closed, wireless, radio channel, 15 – 21000 Hz, 62 Ohm, battery: up to 300 h
gaming, overhead, closed, combined, Bluetooth v5.2, radio channel, 20 – 20000 Hz, battery: up to 24 h