This equipment can detect batteries voltage. support Bluetooth hand-free calls, build, in microphone, secure answer calls.
support mobiles A2DP Function, Music will be played directly while the mobile phone is connected.
Mobile phone can be connected automatically when the device powered on.
support an external USB flash drive, Can play music files in mp3 / WMA format.
Integrated car charger of output 5V/ 3.1A is available for charging handle device in car.