Support Line audio input.
Support playing music from USB disk.
Support MP3 and WMA music format.
Support hands-free answer, hang up, reject, redial.
Support BT stereo music to play.
Adopt Call Echo Cancellation and Noise Reduction (CVC) technology.
Support USB output voltage, providing powers to other devices; the maximum is up to 5V/2.5A.
Support car battery voltage display.
Automatic power-off memory function.