Car stereo additional functions usb player bluetooth android media compatible nfc integrated features cd player radio usb player playback cd rrw audio formats mp3 flac receiver tuner amfm total output power 4 x 55 watt connections usb aux in pre amp out bluetooth profiles a2dp avrcp hfp spp pba pbap illuminated keypad multiple options available amplifier properties high pass filter low pass filter usb ports 1 x front usb bluetooth features hands