1. The device can detect battery's voltage.
2. Support Bluetooth headset to answer, high-definition call.
3. Support Bluetooth hands-free calls, built-in microphone, safe answer the phone.
4. Support cell phone A2DP function, connect directly by Bluetooth and play high-quality mobile music.
5. Mobile phone can be connected automatically when the device is powered on.
6. Support USB flash drive to play MP3 / WMA format music.
7.Car charger, 5V / 3.1A output, you can charge for handheld devices.
8. Bluetooth headset charging function, use while charging.
9. Independent power switch, ready to turn off the power, do not loss the car battery.