FM Transmitter for Car Bluetooth &Function CollectionDual Dual USB ports, QC 3.0 fast charge, Hand-free calls, Voice assistant, High-fidelity sound quality output, Dual Screen&Voltage Display, 7 colors and 2 modes of ambient light, Support U disk, TF card and Bluetooth music playback modes.7 Colored LED Strip: FM Transmitter Bluetooth car adapter supports 7 colors LED backlight, 7 colors LED breathing light makes driving more fun, glows to amplify the atmosphere and also makes it easier to operate and drive at night. Equipped with an LED voltmeter that shows you the condition of your car battery to keep you up to date on the condition of the vehicle.PD 18W & QC3.0 Efficient Charging: Bluetooth Adapter Car can quickly charge two devices simultaneously via the PD3.0 and QC3.0 port . which charges for our devices very quickly! Able to charge compatible devices to 80% percent n just 35 minutes. The 5V/1A USB Port with music icon not only for charge but also read U disk to play your favorite music. We would highly recommend the Bluetooth car adapter if you want to charge your phone and laptop at the same time, or play music fonyour phone or even both.Easy to UsePlug the Bluetooth FM transmitter into the car cigarette lighter, select an empty FM frequency (range from 87.5 to 108 MHz) on your car radio, connect the bluetooth on your phone to the hands free car kits, then tune it to the same frequency. After ppairingsuccessfully, it will transmit your phone music to the car stereo system.In music playing mode, it will auto switch to phone call mode if there's an incoming call. Noise cancellation technology mmakessound quality clearer.Dual Screen&Voltage DisplayCompared with other vehicle FM devices, the latest Car Bluetooth Adapter for the unique Dual-screen display design which provides you with more information, shows not only the FM frequency but also the battery voltage, so that you are always informed about the battery consumption,allowing you to be more focused while driving.