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: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-18V 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 40W (2*20W) Feature 9:With power amplifier and decoding functions Feature 10:Bluetooth 5.0 Car MP3 Player Feature 11:recording Feature 12:Color screen display 2*20W 40W Amplifier 7-18V Stereo MP3 Decoder Board 12V MP3 Player Bluetooth 5.0 USB Module FM AUX Radio Recording Handsfree Call 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 7v-18v, and the current is between 1-3A. 6. Can be directly connected to speakers, with power amplifier and decoding functions. 7. Support song format MP3/WMA/WAV/APE/FLAC 8. Main function MP3/USB/TF/FM/BLUETOOTH/remote control/ 9. Power 40W, stereo 2*20W. 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? .