Admirable Multicolor LCD Screen: With its 1.8" (32mm) designed to be brighter and clearer and 360 flexible cable, this transmitter gives you the best viewing experience. View phone calls, choose songs, view your car's battery voltage, choose a radio frequency and switch between connected devices from a single screen. Optimal for Playing Music: This car kit transmitter can well stream music available on your mobile device. Thanks to a special chip that compresses the volume and restores it, the sound quality will become better. Guanda FM transmitter plays high quality MP3, WMA or FLAC files, and provide you with 5 music modes. Reliable Communication: This transmitter distinctly transmits your call to the car audio system using Anti-interference and anti-noise CVC (switched virtual circuit) technology, offers you stable communication and reliable connection. Bluetooth 4.2 cancels echo to reduce background noise and have clearer phone calls. Fast Charge Technology: Both driver and passenger enjoy simultaneous high-speed charging. speed thanks to the 2 USB ports. With the QC3.0 (5V/2.4A) USB ports present on the Guanda Bluetooth adapter, you can fully charge your devices in no time. The power of the transmitter comes from the cigarette lighter, it is suitable for most cars. Universal Compatibility: Guanda's Bluetooth car adapter is compatible with 4 different audio inputs: Bluetooth; USB key (32 GB); AUX port for input and output; TF card (32GB). The wireless car radio adapter is compatible with Samsung, LG, Sony, iPhone (including 7 8 X, XS, 11 12 13 Pro Max ect), Android, iPod, etc.