WIFI:NoDSP:AC5322B DAC:- Dimensions (WxHxD):85*33*32mm Body Material:Plastic Bluetooth:Yes Supports EBook Reading:No Operation Mode:Touch Tone Storage Type:Flash Memory Have Speakers or not:Yes Supports FM:Yes Battery Specification:External Power Signal Noise Ratio:89dB Supports Recording Function:Yes Display Size:None Package:Yes Function:Voice Recorder,FM Radio,bluetooth,Build in Speaker 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 Certification:CE battery:no include 6W Amplifier MP3 Player Decoder Board 5V Bluetooth 5.0 Lossless Format Music decoder Module Car FM Radio TF USB Recorder Call JQ-D077BT Model: JQ-D077BT (with Bluetooth + amplifier) Shell size: 85 * 32MM Function introduction: support Bluetooth function / with amplifier 2 * 3W / double decoding MP3, WMA, WAV format music / read USB disk / read TF card / radio FM / external audio input LINE IN (AUX) / infrared remote control / power off memory / Power supply 5V The main function 1. Music format: MP3 / WMA / WAV / FLAC / APE lossless format music 2, AC5322B Bluetooth version is version 5.0 3, 2 * 3W, connect 2 3W speakers 4, support TF card, support USB interface (U disk); 5, power failure memory function; 6, support 5-10 meters distance infrared remote control operation; 7, support external audio input LINE IN (AUX); 8, support radio FM, receiving frequency band (87.5MHZ-108.0MHZ); 9, button: four buttons multi-directional control, the previous song / play pause / next song / MODE; 10, support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / DC 5V 11, on the structure: panel size: 85 * 32 MM, the depth of the board is 33 MM The button operation details 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. JQ-D102BT 1. ON/OFF: power switch; 2. DC 5V: charging interface; 3. Switch indicator; 4. Microphone: call function; 5. USB: Connect U disk (maximum support 32GB); 6. VOL-: Short press is to select the previous song; long press is to decrease the volume; 7. PLAY/PAUSE: Short press is to switch between pause and play; long press is to switch between USB / TF / FM / LINE IN / BLUETOOTH, short press is to automatically search channels in the radio FM state; 8. VOL+: Short press is to select the next song; long press is to increase the volume; 9. TF: Connect TF memory card (maximum support 32GB); Bluetooth version: Bluetooth 5.0 With Bluetooth call function, power supply voltage is 5V, current requirement is above 2A Music format: MP3 / WMA / WAV / FLAC / APE lossless format music Power: 2*3W, connect 2 3W speakers Radio FM frequency: 87.5-107.5 MHZ Support function introduction: support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / DC 5V About the structure: Panel size: 71 * 22 MM, the depth of the board is 26 MM, the distance between the two screw positioning holes is 59MM With 3.5mm Mic jack Microphone function Bluetooth version 5.0 Power supply voltage: 5V (range 3.7V-5V) and current not less than 1A. Power: 2*3W, and two 3W speakers can be connected at the same time. Connect the 3.5mm microphone function, Support calling (long press the pause button to answer the call when there is a call). Support recording. Recording only supports operation in TF mode or USB mode. Support power-off memory Folder switching function Music format: MP3/WMA/WAV/APE/FLAC lossless music format. Radio FM frequency: 87.5107.5mhz. Introduction of support function: Support MP3/USB/TF/LINE IN/FM/Bluetooth/DC 5V.