Smart QC 3.0 & Safe Charging: The bluetooth car transmitter has dual USB ports, which can charge two devices at the same time. One is a QC 3.0 USB port for fast charging, which is 4 than standard chargers. The other USB charging port is used as a charging port or U disk port for music playback. Built-in over-current protection, short-circuit protection, effectively charging safety.Bluetooth hands-free function: Advanced Bluetooth 5.0 technology makes the connection more stable and the transmission . The high-performance microphone with built-in noise reduction technology provides a clear hands-free function after connecting to Bluetooth, bringing you a pleasant call experience. color screen: The Bluetooth FM transmitter car has a larger color screen, and the display shows all information at a . Such as battery voltage, volume, caller number, FM channel, track name and song duration, etc. The swivel gooseneck of the car radio transmitter also provides you with an adjustable viewing and optimal viewing.4 Music Playing Modes: Enjoy lossless stereo music transmission. The FM transmitter supports four music playback methods, including Bluetooth/-SD card/U disk/AUX. Supports MP3/WMA/FLAC/WAV/ formats. This car bluetooth FM transmitter can be paired with any bluetooth device as a hands-free kit for , , , , , , and other Android smartphones.Easy to operate: Plug the Bluetooth FM transmitter into the lighter. Connect your smartphone to the FM transmitter via Bluetooth. Set a free FM frequency on the radio. Press the button, then use the buttons to enter the same frequency as the car radio.Material: plasticcolour: blackPackage Contents:1 x Car Bluetooth FM TransmitterOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.