1.QC3.0 FAST CHARGING : Dual USB ports, simultaneous dual charge: quick charge 3.0 port, up to 4X faster than standard chargers, charge efficiency is more than 80 percent, save time, reduce power dissipation and another smart 2.4A charge port.^2.7-COLORS LED BACKLIT: Bluetooth car FM transmitter, with 7 colors led backlit light, design for music, with clear screen, no blind spot, driving safer.^3.CRYSTAL CLEAR MUSIC STREAMING : Bluetooth 5.0 transmission is not distorted, full duplex sound quality, with the purity and clarity of the special sound of DSP technology, allows you enjoy crystal clear podcasts and 3 stereo music player modes: A.bluetooth B.TF card C.USB flash drive. Note: support MP3/WMA/WAV/FLAC/APE format music.^4.CLEAR HANDS-FREE CALLS and SIRI & GOOGLE ASSISTANT: Bluetooth 5.0 provides a stable signal connection, built-in microphones and noise suppression (CVC) technology for clearer Hands-Free Calls, perfectly to switch songs, pickup calls, seamlessly connection, supports voice commands to ensure safe driving, enjoy complete voice-control.^5.BROAD COMPATIBILITY: The bluetooth fm transmitter is support all bluetooth enabled devices, such as iPhone, iPad, Tablet, HTC, Samsung, Sony and other, easy to setup and use.