Dual Screen Display with LED Backlight: The FM transmitter Bluetooth car converter features a dual-screen display. The top screen displays the FM channel, while the bottom screen displays the voltage of the car battery. For driving without worry at any moment, check the car voltage. You can use the 7 single-color lighting settings and the breathing mode to create a visually dazzling display of colors, which makes driving safer at night.3 Modes for Playing Music: Playback from Bluetooth-enabled devices; TF card (64GB) music streaming; USB flash drive (64GB) music transmission. With this Bluetooth radio transmitter, you can have a musical feast in your car regardless of the device you use.DSP technology may be able to broadcast stereo audio at a constant transmission speed without distortion.Efficient Charging: The Type C and QC3.0 ports on the Bluetooth adapter for cars allow for simultaneous rapid charging of two devices (42W in total). The Note 20 Ultra,iPhone 14,13,12, Pixel 3, and other devices may be quickly charged using the Type-c Port providing up to four times as fast as traditional charging.Safe Usage: The FM transmitter has built-in over-current, over-voltage, and short-circuit protection that efficiently averts a number of issues. The package includes Bluetooth FM transmitter for vehicles and a user manual.Easy Calling: Noises are efficiently reduced by built-in microphone support noise suppression (CVC) technology that gives you a crystal-clear connection to cut down on interference. With just one click, you can accept, redial, hang up, or reject calls while keeping your eyes on the road,making driving more engaging and safe.