【PD 30W & QC 3.0 18W Fast Charging】This car Bluetooth adapter supports dual-port simultaneous charging (PD 30W + QC 3.0 18W), 4 times faster than standard chargers. Equipped with over-current, over-voltage, over-charge, over-load, over-heat, and short-circuit protection functions, ensure safe charging on-the-go!【Stylish & Unique Splicing Design】This FM Bluetooth transmitter for car features an aluminum alloy top half for high strength, corrosion resistance, and durability. And its semi-transparent ABS plastic bottom half provides a clear view of the high-precision internal components, with a high-tech and modern aesthetic. Experience the exquisite and allure of industrial design!【Bluetooth 5.3 & Built-in Mic】The newest Bluetooth 5.3 technology offers a stable wireless connection, enabling smoother audio streaming with lower latency. Built-in a high-quality microphone, our car Bluetooth FM transmitter allows you to make hands-free calls without any distracting background noises. Furthermore, it broadcasts voice navigation from your phone Apps for easier driving.【7 Color LED Backlit】The LED circle backlight is available in 7 colors to choose at will to match your car interior, adding more fun to driving and amplifying the atmosphere. With this RGB light, you can find the MP3 player FM transmitter and operating buttons more quickly in the dark, ensuring driving safety. (PS: It can be turned off by pressing the control button.)【Joystick Button Design】Our car FM transmitter adopts a sleek joystick button design, simplifying the operation and saving the trouble of fumbling with small buttons while driving. By pushing the button up, down, left, or right, you can easily tune frequencies, switch songs, and adjust the volume; Simply press it to answer, reject, hang up, and redial calls.