This product is a special Bluetooth car charger that can switch the call to the hands-free state via the professional Bluetooth module as long as the mobile phone is provided with the Bluetooth function. When the call is finished, it will be switched to the music play automatically. It can also send the music in your phone to your car sound wirelessly. You can enjoy the music and answer the call in hand-free mode without refitting your car, which ensure the driving safety while enjoying music

Specifications
Rated Voltage 12V-24V
Limited voltage 10~25V
USB Output 5V 2A
Work temperature 0-50 C
SNR >60dB
Degree of distortion <0.1%
Frequency response 20Hz~15KHz
Left and right channel dB >60dB
Bluetooth version Version 4.0
Bluetooth voice With A2DP(Advance audio Distribution profile)
Transmit distance 10M
Bluetooth microphone effective range 0.5~2M
Transmit frequency 87.5-108MHz
Transmit frequency modulation mode Stereo digital PLL frequency lock
Double USB charging ports for charging iPod/iPhone, Samsung, iPad, Nokia and other mobile devices (Output 5V/2.1A)