This model with Built-in FM frequency transmitter:                                                                

  It can read music from your SD Card, then wireless transmit audio signal to your car stereo for listen. And it also could play music from your mobile phone by Bluetooth

The traffic law of any country and place has a visible rule: prohibited using

Phone when you driving the car. This Bluetooth hands free car kit concerns your health and safety. It is utilizes the latest Bluetooth technology to communicate with your compatible phone within a 10-metre range. This allows you to talk through its built-in high quality loudspeaker and external high sensitivity microphone without the need to hold the phone or take your hands off the steering wheel.

Features:

1) Compatible with ALL Bluetooth enabled mobile phones and Bluetooth dongle.

2) Built-in microphone and dual stereo louder speaker

3) Bluetooth specification: 2.0, Range: 10 meter

4) Re-dial the last number

5) The microphone, the louder speaker could to be mute, hence convenient for private conversation at anytime                                                                                              

6) Independent FM wireless earpiece to protect your secret

7) Easy installation, this mirror simply clips over the top of your existing mirror.

8) Full duplex, noise and echo cancellation, DSP technology