Dual USB Ports & Fast Charging – The Bluetooth car adapter has 2 USB charging ports (5V-3.1A and 5V-1.5A), supports two devices at the same time, can charge quickly and efficiently, QC 3.0 port has 5W, 18W fast charging, the speed is 80% faster than normal, you can listen to your favorite music on your mobile phone via Bluetooth TF card/USB disk. Colorful Light Ring RGB- The car Bluetooth FM transmitter has RGB adjustment modes, with 7 static modes and 1 dynamic RGB mode, a perfect combination of music and lighting modes, more romantic and fun atmosphere, will make your journey more interesting, it will greatly simplify your operations with the backlight circle for driving. Hands-free Calling- When the Bluetooth connection is successfully paired, you can make normal calls and listen to music, while the noise reduction technology ensures an excellent hands-free calling experience, press the button allows you to easily select FM channels. /Pause/Answer/Pause during phone calls, you don't need to look at your phone to ensure safe driving. 3 Music Playing Modes: This Bluetooth FM transmitter for car can be connected via Bluetooth, TF card and USB flash disk for music playing mode. Support MP3/WAV format, USB player, Micro SD player, Type-C charger, support 20W PD fast charging. Charging (5V 3A, 9V 2.2A, 12V 1.7A), listen to music and charge your phone at the same time. Wide Compatibility: This Bluetooth FM transmitter will automatically connect to the paired Bluetooth to detect music playing, suitable for different formats MP3, WMA, SNR, compatible with smartphones and other devices, also provide TF card and USB flash disk, with the widest range from 87.5MHz to 108 MHz, it is possible Bluetooth FM Transmitter for Car,Bluetooth Adapter for Car MP3 Radio Player,Fm bluetooth car,Hands-Free Call,2 USB Ports Fast Charger 5V/3.1A and 1A,QC3.0,Support TF Card/Key USB Specification: Bluetooth version: V5.0 Input voltage: 12-24V Dual USB charging: 5V/3.1A and 1 A Fast Charging: QC 3.0 5W, Fast Charging 18W Lighting Mode: 7+1 Colorful Modes Music Format: MP3/WMA/SNR Support Bluetooth music, TF card, USB disk and Bluetooth hands-free calling