WIFI:NoDSP:- DAC:- Dimensions (WxHxD):- 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:80W Amplifier 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 7V-25V Feature 1:Support folder playback Feature 2:Support call Feature 3:Support power off memory Feature 5:Folder switching function Feature 6:Support song format MP3 WMA WAV APE FLAC Feature 7:Bluetooth 5.0 Feature 8:Power 80W (2*40W) Feature 9:Support Recording Feature 11:true stereo dual channel Feature 12:support MP3 USB SD LINE IN FM BLUETOOTH Feature 13:color screen display 40W 12V Bluetooth 5.0 Audio Digital Power Amplifier Board Decoder Class D Stereo Car DIY USB AUX FM Radio MP3 Player For Speaker DC 7V-25V Bluetooth version 5.0 Power: 2*40W Bluetooth calling function recording function Music format: MP3/WMA/WAV/FLAC/APE lossless format music Radio FM frequency: 87.5108 MHZ Folder switching function Support function introduction: support MP3 / USB / SD / LINE IN / FM / BLUETOOTH / remote control connection / DC 12V (voltage range 7V-25V, current not less than 2A) 1. Description of recording function 1. Long press the MODE button to start recording, long press the MODE button again to cancel the recording function and play the recorded file; 2. When recording, it is necessary to connect a storage device, such as: U disk or TF card; Under the storage device, such as U disk or TF card, long press the PLAY/PAUSE button (play/pause) to enter the recording folder and play the recording file; 2. Button and interface function 1. PREV: Twist to the left to select the previous song; NEXT: Twist right to select the next song; 2. IR: infrared receiving module; 3, MIC: support call and recording functions; 4. USB interface: connect U disk (maximum support 32GB); 5. LED: digital screen display; 6. SD card slot: connect SD memory card (maximum support 32GB); 7. AUX interface: audio input interface; 8. Volume knob: control the volume; 9. REC: Press and hold the REC button to start recording, press the REC button again to cancel the recording function and play the recorded file; when recording, you need to connect a storage device, such as a U disk or SD card; 10. REPEAT: Press the single loop function once, press it again to cancel the single loop, and play it in sequence; 11. FD-: The short key is to switch to the previous folder, and the long press is to rewind; 12. FD+: Short key is to switch to the next folder, long press is fast forward; 13. PLAY/PAUSE: Short press is to switch between pause and play; long press is to radio FM automatic station; 14. MODE: Switch between USB / SD / FM / AUX / BLUETOOTH; DC 8V-23V Stereo output power: 1. 2*40W (VDD=23V, RL=8 ) 2. 2*30W(VDD=16V), RL=4 3. 2*20W(VDD=12V), RL=4 Bass output power: 1. 80W (VDD=23V, RL=4 ) 2. 64W (VDD=21V, RL=4 ) 3. 47W (VDD=18V, RL=4 ) Function Description: Size: 112*61MM 1. Bluetooth version 5.0 2. Support calling (long press the pause button to answer the call when there is a call). 3. Support recording. Recording only supports operation in TF mode or USB mode. (Long press the MODE button to start recording, long press the MODE button again to cancel the recording and play the recorded file; exit the recording mode and long press the pause button to exit. When recording, you need to connect a storage device, such as a U disk or TF card;) 4. Support power-off memory 5. The power supply voltage supports between DC 8v-24v, and the current is between 1-4A. 6. Can be directly connected to speakers 7. Support song format MP3/WMA/WAV/APE/FLAC 8. Main functions MP3/USB/TF/LINE IN/FM/BLUETOOTH/remote control/ 9. Stereo 2*40W. Woofer power 80W 10. Support folder selection to play. When USB or TF is playing, there is a folder in the device and there are songs in the folder. Press the previous button or the next button twice to select the folder to play songs, and the screen will display F001-F00? and so on, yes? A folder displays F00? . Time setting operation method: short press the clock button, enter the clock mode, the screen flashes at the hour number position, then use the next button and the previous button to adjust the time to be set, and then short press the clock mode to enter the minute setting. After the adjustment is completed, press the c