Upgraded Bluetooth V5.0 Car FM Transmitter with Power Off Button Delivers faster data transmission, a more stable connection, and improved antiinterference performance for a smooth and reliable experience Convenient power off button lets you easily turn the device off without unplugging it Fast Charging with PD3.0 TypeC and QC3.0 USB Ports Equipped with an 18W TypeC PD3.0 port and Quick Charge 3.0 USB port to charge devices up to 4 times faster than standard chargers Additional 5V/1A USB port supports music playback from a USB drive Multiple Music Playback Options with Wide Compatibility Three ways to enjoy your favorites: Bluetooth streaming, TF card (microSD), or USB drive Supports audio formats including MP3, WMA, FLAC, AAC, and WAV for greater flexibility A2DP support ensures quality Bluetooth audio streaming Clear Calls with Builtin NoiseCancelling Microphone Integrated microphone reduces background noise for better voice clarity when making or receiving calls Simple Setup and UserFriendly Operation Plug into your car's cigarette lighter socket, set your car radio to an unused FM frequency, match the transmitter to the same frequency, then connect your phone via Bluetooth Automatically reconnects to your phone when powered on again for hassle use Use Scenarios Keep your phone charged during long drives while listening to quality streamed music Make hands calls with clear sound during busy commutes Play your music library from a USB drive or TF card on road trips without relying on a mobile signal