41W 4X Faster ChargerComes with a double-sided blind insert 1 QC 3.0 port (18W), 1 Type-C PD 3.0 port (18W) and 1 USB port (5W), the Bluetooth FM transmitter offers users drivers and passengers 4 times faster charging. 4 Modes & 2 ScreensThe car Bluetooth adapter supports Bluetooth Input Playback Mode / U Disk / Micro SD Card ( TF)/ AUX. One screen shows FM frequency and the other shows vehicle voltage of cars(12V) and trucks(24V). Aux OutputAux output port turns FM transmitter into Bluetooth car audio receiver. It means you can connect the FM transmitter to the car via supplied Aux cable when your car has no radio or the radio is broken. In addition, the connection with the car via the Aux cable is more stable and of high quality. Hands-free calls and Voice AssistantAnswer / Reject / Hang up / Redial the phone with one button. Noise-canceling microphone adopting DSP technology reduces noise by up to 90%. Just enjoy much clearer and crystal clear phone calls. Plus, you can stay fully focused on the road by using Siri or Google Assistant to make phone calls, text messages or get driving directions. Rotary and Memory FunctionBeing horizontally adjustable at 90 and vertically at 45 and made of a longer bottom insertion part, the Bluetooth FM transmitter provides easier access to hands-free calling and charging ports. Time Memory: In U Disk/TF Card Play Mode, restart your car, will play the same song played last time.