BT headphones A770BL Black
| Characteristic | Details |
|---|---|
| Frequency range | 5-20kHz |
| Bluetooth version | 5.0 |
| Sensitivity | 122dB ±3dB |
| Battery life | 12h |
| Charging time | 1h |
| Characteristic | Details |
|---|---|
| Frequency range | 5-20kHz |
| Bluetooth version | 5.0 |
| Sensitivity | 122dB ±3dB |
| Battery life | 12h |
| Charging time | 1h |
