1.Bluetooth 5.0Hand-free CallingBuilt-in latest bluetooth 5.0 chip set and FM transmitter make it possible for our bluetooth FM transmitter to maintain stable signal connection for hand-free calling, music playing, Goolge Voice Guide etc. and lets you focus on driving while enjoying the music or radio channels.^ 2.Dual USB Fast ChargeQC 3.0+5V/1AInput:12-24V, Output:QC 3.0(5V/3A)+5V/1A. Equipped with two usb charging ports, our dual usb charger enables you to charge two device simultaneously at fast speed through smartly detecting loading device and providing fastest power supply. Quick Charge 3.0 port, up to 4X faster than standard chargers, is able to charge compatible devices to 80% in just 35 minutes.^ 3.Three Music Playing ModeHD SoundApplied with latest CVC noise depression technology, our car radio adapter enables you to feast on high quality and lossless music through streaming music from smart devices with bluetooth, max. Besides, MP3/wma/wav/flac music format is supported