<p>This model has the function of automatic conversion device. When there is no device, the default is in the Bluetooth-compatible state. If there is a device, the device is interpreted first.</p> <p>Music format: MP3\/WMA\/WAV\/APE\/FLAC lossless format</p> <p>Radio FM frequency: 87.5-107.5 MHZ</p> <p>Support function introduction: support MP3 \/ USB \/ TF \/ LINE IN \/ FM \/ Bluetooth-compatible 5.0 \/ remote control</p> <p>Panel size: 5x2.4cm</p> <p>TF:Connect TF memory card (up to 32GB)</p> <p>USB:Connect USB flash drive (up to 32GB)</p> <p>(Shipment without card)</p> <p>LED indicator</p> <p>PREV\/VOL-: Short is to select the previous song; long is to decrease the volume.</p> <p>for PLAY\/PAUSE: Short is the switch between pause and for play; Long is the switch of USB \/ TF \/ FM \/ AUX \/ Bluetooth-compatible sound, in the radio FM state, the short pause for play button is automatically searched.</p> <p>NEXT\/VOL+: Short is to select song; long is to increase the volume.</p> <p>Support MP3\/WMA\/WAV\/FLAC\/APE</p> <p>Support:MP3\/USB (U disk)\/TF\/LINE IN\/FM</p> <p>Power Supply:5V 12V</p> <p>Three buttons:PREV\/for PLAY\/NEXT</p> <p>1. PREV button (previous song\/volume reduction):In the MP3 state, the PREV short is the previous song, and the long is the volume reduction.</p> <p>2. for PLAY button (for play\/pause):for PLAY short for play \/ pause in MP3 state; long is USB \/ TF card \/ AUX \/ Bluetooth-compatible mode test tone switch.</p> <p>3. NEXT button (next song \/ volume increase):NEXT short for song in MP3 state, long for the volume to increase.</p> <p>Note:The colors and styles of accessories are random due to different batches and cannot be specified.</p> <p>Colour:Black</p> <p>Material:ABS</p> <p>Package Contents:</p> <p>1set * Car MP3 decoder board</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>