Bluetooth Version:Bluetooth 5.0,Music Audio format:MP3 / WMA / WAV / FLAC / APE Support:MP3/USB/TF/LINE IN/FM/BLUETOOTH,Accept:U Disk , TF 1.TF:Connect TF memory card (maximum support 32GB),2.USB:Connect U disk (maximum support 32GB),3. LED indicator,4.PREV/VOL-:Short is to select the previous song; long is to decrease the volume 5.PLAY/PAUSE:Short is the switch between pause and play; long is the switch of USB / TF / FM / AUX / BLUETOOTH; in the FM FM state, the pause play button is automatic search; 6.NEXT/VOL+:Short is to select song; long is to increase the volume; Voltage: 12V Material Type: ABS Radio Response Bandwidth: 87.5 - 107.5 MHZ Item Weight: 0.08kg OSD Language: English Color: Silver Item Size: 50 x 24 MM Resolution: x Install Size: 1 Din Out Power: None Display Size: 1.1 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: V5.0 Music format: MP3 / WMA / WAV / FLAC / APE lossless format Radio FM frequency: 87.5-107.5 MHZ Function introduction: support MP3/USB/TF/LINE IN/FM/BLUETOOTH/DC Panel size: 50 x 24 MM, the depth of the board is 35MM Package Contents: 4 xBluetooth panel 16 xwire Only the above package content, other products are not included. 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.