[Clear Sound and Lossless Music] Built-in dual microphone design captures sound more effectively than a single microphone; noise reduction technology reduces background noise. Advanced Bluetooth 5.0 chip ensures stable connection and fast transmission speed. This car Bluetooth adapter delivers clear calls and high-fidelity music streaming while driving.[USB-C PD Fast Charging and 3 USB Ports] Bluetooth audio transmitter features 3 charging ports: One 18W USB-C (Type-C) PD charging port with output of 5V/3A, 9V/2A, 12V/1.5A max, charging compatible devices up to 50% in just 30 minutes; one 5V/2.4A USB port for standard charging; and a USB drive port that can also function as a charging port. Share charging functionality while listening to music.[2.0 Inch LCD Screen and Power On/Off Button] The FM transmitter includes an LCD screen that displays FM frequency and car battery voltage, helping you monitor battery status. One-key shutdown feature saves time by eliminating the need to unplug when turning your car on or off. Simply long press the power button for 3 seconds to turn off the device. (Note: Charging ports remain functional even when the device is powered off.)[Hands-free Calling and Voice Assistant] Tap the call button to answer, redial, hang up, or reject calls. Switch seamlessly between incoming calls and music playback. Use Siri or Google Assistant to make calls, send messages, or get driving directions without taking your hands off the wheel. Supports voice announcements from navigation apps, reducing the need to look at your phone.[9 Colors LED Backlight] Enhance your car interior with customizable lighting. The circular backlight offers 9 color options: red, blue, green, yellow, cyan, purple, white, rainbow, and breathing rainbow. The illuminated buttons help you locate controls easily in low light for safer driving. (Note: Backlight can be turned off.)Color: Black Material: Plastic Package Contents: 1 x Bluetooth 5.0 FM Transmitter for Car Only the above package content is included. Other items are not included. Note: Light reflection and differences in display screens may cause slight variations in color appearance. Measurement error allowance is +/- 1-3 cm.