A Bluetooth FM transmitter is the bridge that can join these technologies together. Its bright back-lit LCD display and controls give it an all-in-one media center. The device is compatible with QC3.0&USB-PD Ports car charger, music radio adapter, handsfree calling, support TF /USB flash drive. You can also pair the transmitter and your phone with Bluetooth function or use the USB/TF memory card to play music. The latest Bluetooth V5.0 with a more stable and faster connection of the FM signal. You can enjoy crystal Hands-Free calls easily answer/hang up / reject/redial calls while driving. The wireless Bluetooth FM transmitter can show your car's voltage for 3 seconds after power-on. It can be used in cars, trucks, vans, Jeep, and other 12-24V vehicles. The bling exterior electronics car kit makes your car more enjoyable. 7 single-color lighting modes and 1 cycle color mode: press the right button on the Bluetooth adapter to change the color.