1. Bluetooth V5.02. display digital tube display3. Support QC3.0 fast charge4. Support PD Type-C fast charge5. Support atmosphere light6. Battery voltage detection7. Automatic -off memory function8. Support stereo FM transmission technology9. Support U disk playback10. Support TF card music playback11. Support WMA, MP3, WAV, FLAC music format files12. Bluetooth supports A2DP, AVRCP, HFP, 13. Bluetooth hands-free calling14. Support Bluetooth stereo music DSP technologyColour:blackMaterial:plasticPackage Contents:1 x Small bluetooth car fm transmitters1 x English manualOnly 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.