[Clear sound and lossless music] Built-in dual microphone design, which collects sound better than a single microphone; CVC noise reduction technology effectively reduces noise and echo; advanced Bluetooth 5.0 chip ensures stable connection and fast transmission speed. Therefore, this car Bluetooth adapter will bring you clear calls and extraordinary Hi-Fi music streaming while driving. $ [USB-C PD QUICK CHARGE & 3 USB PORTS] The Bluetooth audio transmitter has 3 charging ports: an 18W USB-C (Type-C) PD charging port outputs 5V/3A, 9V/2A, 12V/1.5A maximum and It can charge compatible devices to 50% in just 30 minutes; a 5V/2.4A USB port is used for normal charging; there is a USB drive port on the top, which can also be used as a charging port. Share the charging port with your friends while listening to music. $ [2.0 inch LCD screen and power on/off button] The Sebigy FM transmitter has a large LCD screen, which can not only display the FM frequency, but also the car battery voltage, allowing you to know the battery usage at any time. One-key shutdown saves the trouble of plugging and unplugging the power supply every time you start and get off the car. Just press and hold the "CH" key for 3S to turn off the FM transmitter (note: even if the power is off, the charging port can still be used). $ [Hands-free call and voice assistant] Just click the call button to answer/redial/hang up/reject the call; switch seamlessly between the call and music. You can use Siri or Google Assistant to make calls, send text messages, or get driving directions to stay focused on the road. In addition, this Bluetooth car kit supports broadcasting voice notifications from existing navigation applications. You dont have to look at your phone often anymore. $ [9-color LED backlight] Do you want to make your car interior look cooler and more stunning? Backlight ring design, including 9 light color choices of red/blue/green/yellow/cyan/purple/white/rainbow/breathing rainbow to meet your expectations. With the light, you can find the button more accurately and quickly in the dark to ensure driving safety (Note: the light can be turned off).