WIFI:NoDSP:- DAC:- Dimensions (WxHxD):91mm*57mm 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:No Function:Voice Recorder,FM Radio,bluetooth,Build in Speaker Model Number:MP3 Decoder Board Style:Car MP3 Battery Life:> 20 hours Screen:Yes Balanced Out:No External Memory:Yes Audio Format Support:MP3, WAV,FLAC,ape,WMA Origin:Mainland China Certification:CE battery:not include Feature 1:DC 9V 12V Feature 2:Support folder playback Feature 3:Folder switching function Feature 4:Support power off memory Feature 5:Support song format MP3 /WMA / WAV / APE / FLAC Feature 6:bluetooth mp3 Feature 7:mp3 players bluetooth,Bluetooth 5.0 Car MP3 Player Feature 8:mp3 usb fm bluetooth decoder board DC 5V 12V LCD Bluetooth 5.0 MP3 Decoder Board Audio DAC USB Player WMA APE Lossless Decoding With Lyrics Display Recording TF FM Main control IC: AC6921 Bluetooth IC: AC6921 Bluetooth version is 5.0 Music format: MP3 / WMA / WAV / FLAC / APE lossless format Radio FM frequency: 87.5-107.5 MHZ Support function introduction: support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / remote control connection / DC 5V or 12V (optional) About the structure: Panel size: length 91 * width 57 MM, the panel is surrounded by screw holes, the depth of the board is 20MM 1. TF card slot: connect to TF memory card (maximum support 32GB); 2. AUX interface: audio input interface; 3. LCD screen: synchronized lyrics display; 4. USB interface: connect to U disk (maximum support 32GB); 5. IR: infrared receiver module; 6. MIC: Support call and recording function; 7. REC: Press the REC button to start recording, press the REC button again to cancel the recording function and play the recording file; when recording, it is more necessary to connect a storage device, such as a U disk or TF card; 8. REPEAT: Press the single cycle function once, and press it again to cancel the single cycle and play in sequence; 9. PREV/VOL-: Short press is to select the previous song; long press is to decrease the volume 10. PLAY/PAUSE: Short press is to switch between pause and play; long press is to radio FM automatic station; 11. NEXT/VOL+: Short press is to select the next song; long press is to increase the volume; 12. MODE: Switch between USB / TF / FM / AUX / BLUETOOTH;