Efficient Car Charger: With 3 USB ports (PD18W, QC3.0, 5V/1A), you can charge multiple devices while listening to music or podcasts. 18W USB C PD and USB-A QC3.0 fast charging options quickly charge your phone battery four times faster than usual. High Performance Calls: Bluetooth 5.0 delivers smoother connections and greater stability. The built-in microphone and noise canceling technology work well to deliver crystal clear sound quality during calls with no sound peaks or noise. Single-button control to answer, end and reject calls for hands-free operation. Soft RGB backlighting: 8 enhanced static modes and 1 dynamic RGB mode, including monochrome lighting modes red/green/blue/yellow/purple/cyan/white, static rainbow and dynamic rainbow. With a short press of the button, you can easily change the color or turn off the backlight. This Car Bluetooth Transmitter provides a romantic atmosphere while driving! Hi-Fi Music Streaming: Besides wireless music streaming from Bluetooth phones, you can also play music directly from a USB disk (up to 32 GB). With a full range of audible frequencies, you can enjoy clear, interference-free music at high speed on your smartphones! Voice Assistant: Long press the RGB button to activate the voice control function. This bluetooth cigarette lighter supports using Siri or Google smart assistant to make calls, send messages, get directions or voice navigation, so you can focus on the road and make driving easier , safer and more convenient.