Koss | Headphones | BT221i | Wireless | In-ear | Microphone | Wireless | Black
| Other features | •In-Line Microphone & Remote (Play/Pause, Start/Stop, Volume, Answer/End, etc.) •Pivoting ear-clip creates the perfect fit and seal •Sweat Resistant •Cable Management Clip |
| Producer product name | BT221i |
| Volume (m3) | 0.00031356 m³ |
| Net weight master carton | 0.378 kg |
| Frequency range | 50-18.000 Hz |
| Palette Qty | 4452 pc(s) |
| Gross width master carton | 88 mm |
| Tare weight master carton | 0.023 kg |
| Battery type | Built-in rechargeable lithium-ion battery |
| Gross depth master carton | 143 mm |
| Plastic (No PET) | 44 g |
| Battery life | 6+ h |
| Bluetooth version | 4.2 |
| TI weight (kg) | 0.002 kg |
| Tare weight (kg) | 0.044 kg |
| Gross weight | 0.063 kg |
| Gross height master carton | 185 mm |
| Gross depth (mm) | 67 mm |
| Net weight | 0.019 kg |
| Producer | Koss |
| USB charging port | No |
| Gross width (mm) | 26 mm |
| Microphone | Yes |
| Wearing style | In-ear |
| Gross height (mm) | 180 mm |
| Packing quantity | 6 pc(s) |
| Producer product family | Headphones |
| Headphones connection type | Wireless |
| Connector type | Bluetooth |
| Wireless | Yes |
| Noise canceling | No |
| Wireless connection | Yes |
| WEE classification | CL109:5:2017-04-01 |
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