rearview mirror bluetooth car kit

Specification: 1.Combine rearview mirror and Bluetooth technology. 2.Full duplex, DSP technology for noise and echo cancellation. 3.Independent Bluetooth earphone, taken away easily 4.Support two profiles - Handsfree and Headset 5. Four pcs LED nixietube display incoming call ID, The longest ID can display for 12bit, LED status indication for different mode of operation; 6.Easy fixing on the original mirror, no installation, no wire 7.Up to 200 hours standby time; Up to 12 hours talking time 8.RF transmit to FM Frequency listening by car radio:FM88.1HZ,88.7HZ,89.1HZ,90.1HZ; 9.Supply optional car or travel charger together with USB cable