🎧 Elevate your sound game—wireless freedom meets all-day comfort!
The Koss BT221i Wireless Bluetooth Ear Clips deliver over 6 hours of playback with sweat-resistant, lightweight design. Featuring Bluetooth connectivity and an in-line microphone with remote, these ear clips offer hands-free control and durability for active professionals on the move.
| Control Method | Remote |
| Controller Type | remote |
| Control Type | Volume Control |
| Unit Count | 1.0 Count |
| Item Weight | 0.06 Kilograms |
| Wireless Technology | Bluetooth |
| Bluetooth Version | 4.2 |
| Connectivity Technology | Wireless |
| Frequency Range | 50-18000 Hz |
| Audio Latency | 150 Milliseconds |
| Impedance | 36 Ohm |
| Noise Control | None |
| Headphone Folding Features | In Ear |
| Earpiece Shape | On-Ear |
| Headphones Ear Placement | On Ear |
| Style Name | Sport |
| Theme | Music & Fitness |
| Color | Black |
| Battery Average Life | 6 Hours |
| Battery Charge Time | 6 Hours |
| Water Resistance Level | Water Resistant |
| Is Electric | Yes |
| Antenna Location | Cycling, Running, Exercising |
| Compatible Devices | Bluetooth-enabled devices |
| Cable Features | Without Cable |
| Additional Features | Lightweight |
| Enclosure Material | Plastic |
| Specific Uses For Product | Music |
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