设计
| 穿戴风格方式 |
Ear-hook |
| 耳机类型 |
Monaural |
麦克风
| 降噪效果 |
Y |
| 数字信号处理(DSP) |
Y |
| 话筒静音 |
Y |
电池
| 充电时间 |
2.5 h |
| 待机时间 |
480 h |
| 会话时间 |
10 h |
Bluetooth 2.1+EDR, 10 m, Li-Ion 3.7V, 10/480 h, 80 g
The BT Drive Free 311 is equipped with an LCD display to show phone numbers and caller names. The device supports text-to-speech in five different languages as well as phonebook synchronization with your cell phones. You get voice messages on the device status and hear the name or number of an incoming call. Thanks to advanced D.S.P. technology for echo and noise suppression, the BT Drive Free 311 affords outstanding hands-free voice quality and ensures convenient, safe use of the telephone while driving.