ePathChina 12V Bluetooth Stereo FM Radio MP3 Audio Player USB / SD / AUX / APE / FLAC Car Electronics Subwoofer In-Dash One DIN Built-in Bluetooth and microphone. Support hands-free calls, advanced audio transmission mode. Front AUX audio input hole and rear terminal L/R audio RCA output hole. Support the clock indicating while power is off. High quality digital stereo FM radio. Support three-band radio store FM1, FM2, FM3, and can preset 18 radio stations. Support USB/SD/MMC card reader. Folder play function and IR wireless remote control. Support break point memory and ID3 play. Rotary electronic volume control. MP3 play supports pause /preview/repeat/random play and 10 tracks up/down selections. Electronic type bass / treble / left and right balance/front and back balance volume control and mute and equal loudness (LUOD) control.