QC3.0 + PD20W FAST CHARGEThis car Bluetooth adapter can support QC3.0 and PD20W charging technology. It is a very convenient, fast and efficient car adapter device. Clear Music PlayerThis car Bluetooth MP3 music player can support TF card and USB disk drive music playback and can support a variety of music formats, allowing you to drive your car more happily. Hands-Free FM Bluetooth TransmitterThis car FM transmitter has a built-in microphone and noise suppression (CVC) technology that allows you to have clear hands-free calls while driving on the road, making your driving safer and more fun. Bluetooth 5.3 technologyBluetooth 5.3 chip, built-in high-performance decoding module, high-performance stereo, stable signal without lag, and smooth music listening without lag.