This FM transmitter has an improved double microphone design and is equipped with noise reduction and cancellation technology. It can connect, hangs up and reject calls, giving you a better hands-free experience. Immerse yourself in surround sound with the bass speakers and 360 low frequency of this 48W Car Transmitter. This transmitter for car bluetooth-compatible uses an improved 5.0 chip, which makes transmission faster, more stable and safe. Provide bluetooth-compatible and U-disk as two playback methods. FM transmitter car is equipped with PD30W and QC3.0 18W fast charging ports that allow two devices to be quickly charged at the same time. This bluetooth-compatible transmitter uses a 7-colour LED light which makes it easier to find the transmitter faster when driving at night (the light can be switched off). At the same time, it is equipped with an LED that automatically detects the voltage when starting.