Upgrade your car audio and charging experience with this Bluetooth 5.0 FM Transmitter. Stream music wirelessly via Bluetooth or U disk in formats like MP3, WMA, WAV, and FLAC. Built-in microphone supports hands-free calls, redial, hang up, and call rejection. The transmitter features QC3.0 and PD 18W fast charging ports, allowing you to charge multiple devices simultaneously. Stay safe on the road with Siri/Google voice assistant support and navigation voice prompts. The FM frequency display, battery voltage detection, colorful LED lights, and power-off memory ensure a seamless driving experience.