Dual USB Ports & Fast Charging:- The Bluetooth car adapter has 2 USB charging ports (5V-4.8A and 5V-1.5A), supports two devices at the same time, can fast charge and effectively, the QC 3.0 port has 5 w , 18w quick charge, the speed is 80% faster than normal, you can hear your favorite music from your mobile phone via Bluetooth TF card / USB disk RGB Colorful Light Ring:- The Car Bluetooth Fm Transmitter has RGB adjustment modes, with 7 static modes and 1 dynamic RGB mode, a perfect combination of music and light mode, more romantic and fun atmosphere , will make your trip more interesting, it will be greatly simplify your operation with the backlight circle for driving. Hands-free calling: - when the Bluetooth connection is successful, you can call normally and listening to music, while the noise reduction technology guarantees a