Holyna 666A Bluetooth Hands free Rearview Mirror is a product designed for the safety of the driver. One key to redial, dial, back, answer, hang up a phone call. It build-in dual speaker and microphone for clear phone call and also wireless headset for private calls. So it safety for driving and also for our body by reducing radiation. It also support USB, SD card to play music and FM transmitter to make you enjoy wonderful music.

Main features:
LED display/Caller ID          
One button to Answer, hang up, redial, call back
Voice-activated dialing supported
Full-duplex, echo and noise shielding, DSP technology
Built-in dual loudspeaker and microphone, wireless headset, FM transmitter
Integrated decode chip, support USB and SD card to play music
USB Connector& SD Connector          
General NOKLA lithium batteries/ultra-long standby
User-friendly design/intelligent conversion make the operation even more arbitrary.