The Green Lion FM Transmitter Dual-Port Car Charger in black serves as the best choice for drivers who need to charge their devices and enjoy entertainment during their trips. The device uses Bluetooth V5.3 technology to provide users with wireless access for making hands-free calls and streaming music. The USB-A port supports QC 3.0 18W, while the USB-C port offers PD36W for fast charging of your devices. You can use the built-in FM transmitter to broadcast music through your car radio because it operates between 87.5 MHz and 108.0 MHz frequencies. The ambient breathing light adds a modern touch, while the bass boost button enhances your audio experience. The system allows you to handle calls and music playback through voice commands using Siri and Google Assistant. The charger also features a smart LED display with voltage monitoring for real-time charging updates. The system allows users to play music from U-Disk and TF cards that have a maximum capacity of 32GB, which makes it possible to create an extended music library for their driving experience. Specification Material: ABS Input: 12-24V Bluetooth Version: V5.3 FM Frequency: 87.5 MHz - 108.0 MHz USB-A Port: 5V/3A, 9V/2A, 12V/1.5A (QC 3.0 18W) USB-C Port: 5V/3A, 9V/3A, 12V/3A (PD36W) PPS Output: 3.3V, 11V/3A Total Output: 36W File Format: WMA, MP3, WAV, APE, FLAC U-Disk & TF Card: Supports Up to 32GB Features Ambient Breathing light Voice Assistant Hand-free Call Bass Boost Button USB & TF Card Music Playback SIRI & Google Assistant Smart LED Display Voltage Monitoring 87.5-108MHz FM Frequency QV 3.0