QC3.0 FAST CHARGING: Dual USB ports with quick charge 3.0 and smart 2.4A charge port for efficient charging and reduced power dissipation.7-COLORS LED BACKLIT: Bluetooth car FM transmitter with 7 colors LED backlit light for a safer driving experience and better music enjoyment.CRYSTAL CLEAR MUSIC STREAMING: Bluetooth 5.0 transmission with DSP technology for crystal clear sound quality, supporting MP3/WMA/WAV/FLAC/APE format music and 3 stereo music player modes.CLEAR HANDS-FREE CALLS and SIRI & GOOGLE ASSISTANT: Bluetooth 5.0 connection with built-in microphones and CVC noise suppression technology for clear hands-free calls and voice commands for safer driving.BROAD COMPATIBILITY: The Bluetooth FM transmitter supports all Bluetooth-enabled devices for easy setup and use with various devices such as iPhone, iPad, Tablet, HTC, Samsung, Sony, and others.