Features: LCD display Support U disk/SD card music playing(Not include) Support Left and right channel audio output. AUX external signal input. Battery power monitoring. FM radio antenna interface. MIC recording port. Operating function buttons and remote for head interface. Master volume encoder interface. Support Memory Card: 32GB(not include) Power: 5V Support format :APE, FLAC, WMA, WAV, MP3 and so on. Buttons Instruction: 1, USB/SD mode: short press to for play pause button / FM radio mode: short press to automatically search. 2, BT / USB / SD mode: short press for the previous song, long press for the volume minus. / Fm radio mode: short press for the previous one, long press for the volume minus. / AUX mode: long press volume minus . 3, USB / SD mode: short press +10 function. 4, BT / USB / SD mode: short press for the next song, long press for the volume plus / Fm radio mode: short press for the next, long press for the volume plus / AUX mode: long press the volume plus 5. REC recording button: Press and hold this button during USB/SD operation to record the sound of the MIC port. The length of the recording depends on the capacity of the U disk or SD card used. for Play the music U disk with the recording file. Short press this button to quickly cut to the recording file to for play, so that users can quickly find the recording file. (In AUX, USB/SD, FM work, if any device such as U disk and SD is plugged in, press and hold the REC button for 2 seconds to start recording. Short press the REC button during the recording to end the recording and for play back the recorded content. If you are listening to music in U/SD, you can quickly press the record button to quickly switch to the recording file. If you want to listen to the current recording file, you can press and hold the MODE button for 2 seconds to for play the recording file. REC recording file, please be sure to confirm the content you want to delete.) 6. USB/SD boot defaults to full loop playback. Press this button to switch to single loop playback. 7. MODE button: Short press to switch between AUX/USB/SD/BT/FM mode./When playing the recording file, press this button to delete the currently playing recording file. 8. EQ button: Short press this button to switch between 5 EQ sound effects when playing USB/SD music. Specifications: Power:5V Support Memory Card:32GB(not include) Support format:APE, FLAC, WMA, WAV, MP3 and so on Color:As the picture Size:As the picture Quantity :1 Set Notes: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included: 1xMP3 Decoder Board 1xRemote Control(without battery)