WIFI:NoDSP:AC5322B DAC:- Dimensions (WxHxD):85x32x33cm Body Material:Plastic Bluetooth:Yes Supports EBook Reading:No Operation Mode:Touch Tone Storage Type:Flash Memory Have Speakers or not:No Supports FM:Yes Battery Specification:External Power Signal Noise Ratio:89dB Supports Recording Function:No Display Size:None Package:Yes Function:FM Radio,bluetooth Model Number:MP3 WMA Decoder Board Style:Car MP3 Battery Life:> 20 hours Screen:No Balanced Out:No External Memory:Yes Audio Format Support:FLAC,APE,MP3,WAV,WMA Origin:Mainland China Bluetooth IC:AC5322B Supply:5V (no 12v) Support:MP3 / USB / TF / LINE IN / FM / BLUETOOTH / DC 5V Power Amplifier:2 x 3W Amplifier Battery:no includes Mic: Support Call TF: Supports TF cards (up to 32GB) AUX: Audio Input Interface DC 5V: Charging Interface ON/OFF: Power Switch USB: Connect to U disk ( up to 32GB) VOL-: Short press is the last song; Long press is the volume reduction. PLAY/PAUSE: Short press is the switch between pause and playback; Long press is the radio FM automatic station. VOL+: Short press is to choose the next song; Long press is to increase the volume. MODE: Switching of USB/TF/FM/LINE IN/BLUETOOTH Voice Feature: 1. Support MP3/WMA/WAV/FLAC / APE 2, Power amplifier :2 * 3W 3, Support: MP3 / USB(U disk) / TF / LINE IN / FM / BLUETOOTH / DC 5V 4. Radio FM Frequency Band: 87.5MHZ-108.0MHZ 5, Power failure memory function 6, Remote Control Distance: 5-10M 7. Four Button: the previous song / play pause / next song / MODE 1. VOL-button (previous song/volume reduction): In MP3 state, VOL-short press is the previous song, long press is for volume reduction; in FM state, short press to adjust one station number; in Bluetooth Short press under the function is the last song of Bluetooth, long press to decrease the volume. 2. AUTO button (play/pause): In the MP3 state, AUTO is short pressed to play/pause; in FM state, short press is play/pause, long press is for automatic receiving and saving; in Bluetooth function, short press to play /time out. 3, VOL + button (the next song / volume increase): In the MP3 state, VOL + short press for the next song, long press for the volume to increase; short press in the FM state to adjust a station number; under the Bluetooth function Short press for the next song of Bluetooth, long press for the volume to decrease. 4. MODE button: switch between USB/SD/FM/AUX/Bluetooth function.