Efficient Car Charger: With 3 USB ports (PD18W, QC3.0, 5V/1A), you can charge multiple devices while listening to music or podcasts. The USB C PD 18W and USB-A QC3.0 fast charging options can quickly charge your phone battery, four times faster than usual. High-Performance Calls: Bluetooth 5.3 offers smoother connections and greater stability. The built-in microphone and noise-canceling technology work well to provide high-quality crystal clear sound during calls, without any pops or noise. One-button control to answer, end and reject calls for hands-free operation. Soft RGB Backlight: 8 enhanced static modes and 1 dynamic RGB mode, including monochrome red/green/blue/yellow/purple/cyan/white, static rainbow and dynamic rainbow lighting modes. By short pressing the button, you can easily change the color or turn off the backlight. This Bluetooth Car 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 32GB). With a full range of audible frequencies, you can enjoy clear and interference-free music at high speed on your smartphones!