FM02 Car Bluetooth-Compatible Transmitter Receiver Handsfree Call Mini USB Power Car Kit Auto Wireless Audio for Car FM Radio Feature: 1. Latest Bluetooth-Compatible Technology:The USB FM Transmitter is designed for car scenarios and features the latest Bluetooth-Compatible 5.3 technology and mature frequency modulation technology, allowing car enthusiasts to easily enjoy wireless music in their cars. 2. USB Interface for Power: The transmitter can be powered by a USB interface. When in use, you can plug the transmitter into a USB port with an output voltage of 5V, such as a car's USB port (5V) or car charger port (5V). 3. Upgraded Version:The FM02 USB Adapter is an upgraded version of the FM01 with 3 additional buttons for adjusting channels from 87.5 to 108, volume control, and track selection. The Bluetooth-Compatible version has also been upgraded to Bluetooth-Compatible 5.3 and includes an LCD display screen. 4. Good Compatibility and No Lag: The mini USB adapter has good compatibility, no delay, and no stuttering. It is compatible with almost all cars and phones on the market, making it easy to use and access. 5.