Bluetooth Version:Bluetooth 50,Music Audio format:MP3 / WMA / WAV / FLAC / APE Support:MP3/USB/TF/LINE IN/FM/BLUETOOTH,Accept:U Disk , TF 1TF:Connect TF memory card (maximum support 32GB),2USB:Connect U disk (maximum support 32GB),3. LED indicator,4PREV/VOL-:Short press is to select the previous song; long press is to decrease the volume 5PLAY/PAUSE:Short press is the switch between pause and play; long press is the switch of USB / TF / FM / AUX / BLUETOOTH; in the FM FM state, the pause play button is automatic search; 6./VOL+:Short press is to select the song; long press is to increase the volume; Voltage:12V Material Type:ABS Radio Response Bandwidth:875 - 1075 MHZ Item Weight:002kg OSD Language:English Color:Silver Item Size:50 * 24 MM Resolution:x Install Size:1 Din Out :None Display Size:11 inch Computer Memory Size:Accept TF card no more than 32G Model Name:MP3/USB/TF/LINE IN/FM/BLUETOOTH Master IC:AC6925A Main control IC:AC6925A Bluetooth IC:AC6925A Bluetooth version:V50 Music format:MP3 / WMA / WAV / FLAC / APE lossless format Radio FM frequency:875-1075 MHZ Function introduction:support MP3/USB/TF/LINE IN/FM/BLUETOOTH/DC Panel size:50 * 24 MM, the depth of the board is 35MM Package Contents: 1 *Bluetooth panel 4 *wire Only the above package content, other products are not included. Note: Light 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.