WIFI:NoDSP:- DAC:- 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:LCD Bluetooth 5.0 MP3 Decoder Board Style:Pure Audio 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 power supply:DC 12V Feature 1:Support folder playback Feature 2:Support call Feature 3:Support power off memory Feature 4:LCD screen display Feature 5:Folder switching function Feature 6:Support song format MP3 /WMA / WAV / APE / FLAC Feature 7:Bluetooth 5.0 DC 12V Bluetooth 5.0 Audio MP3 Decoder Board With LCD Screen Supports Call Recording MP3 USB TF LINE IN FM BLUETOOTH Main control IC: AC6921 Bluetooth IC: AC6921 Bluetooth version is 5.0 Music format: MP3 / WMA / WAV / FLAC / APE lossless format Bluetooth call function recording function Folder switching function Radio FM frequency: 87.5-107.5 MHZ Support function introduction: support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / remote control connection / DC 12V About the structure: Panel size: length 112 * width 62 MM, the panel is surrounded by screw holes, the depth of the board is 22MM 1. Buttons and interface functions 1. IR: infrared receiver module; 2. MIC: Support call and recording function; 3. USB interface: connect to U disk (maximum support 32GB); 4. LCD screen: synchronized lyrics display; 5. SD card slot: connect to SD memory card (maximum support 32GB); 6. AUX interface: audio input interface; 7. Volume knob: control the volume; 8. REC: Long 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; 9. REPEAT: Press the single cycle function once, and press it again to cancel the single cycle and play in sequence; 10. PREV/: Short press is to select the previous song; long press is to rewind; 11. PLAY/PAUSE: Short press is to switch between pause and play; long press is to radio FM automatic station; 12. NEXT: Short press is to select the next song; long press is to fast forward; 13. MODE: Switch between USB / TF / FM / AUX / BLUETOOTH;