WIFI:NoDSP:AC6925A DAC:- Dimensions (WxHxD):50x24x35cm 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:No 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 Battery:no includes TF: Connect TF memory card (up to 32GB) USB: Connect USB flash drive (up to 32GB) LED indicator PREV/VOL-: Short press is to select the previous song; long press is to decrease the volume PLAY/PAUSE: Short press is the switch between pause and play;Long press is the switch of USB / TF / FM / AUX / BLUETOOTH sound, in the radio FM state, the short pause play button is automatically searched; NEXT/VOL+: Short press is to select the next song; long press is to increase the volume; Feature: Support MP3/WMA/WAV/FLAC / APE Support: MP3 / USB (U disk) / TF / LINE IN / FM / BLUETOOTH Power Supply: 5V 12V Three buttons: PREV/ PLAY / NEXT; 1. PREV button (previous song/volume reduction): In the MP3 state, the PREV short press is the previous song, and the long press is the volume reduction; 2, PLAY button (play / pause): PLAY short press for play / pause in MP3 state; long press is USB / TF card / AUX / Bluetooth mode test tone switch. 3, NEXT button (next song / volume increase): NEXT short press for the next song in MP3 state, long press for the volume to increase; 4. This model has the function of automatic conversion device. When there is no device, the default is in the Bluetooth state. If there is a device, the device is interpreted first.