1.Bluetooth and FM audio transmission 2. Supports QC3.0, QC2.0, PD, etc charging protocol. 3. Supports WMA, MP3, WAV, APE, FLAC music formats 4. Supports Bluetooth phone, voice, music, navigation 5. Support output over voltage protection, short circuit protection, over current protection, over temperature protection 6. Automatic re-connection 7. U disk to play music 1. Do not turn the radio volume too high (usually 18 or below) to avoid the increase of the sound back noise. Transform your driving experience with this cutting-edge Bluetooth FM Transmitter for your car. Seamlessly stream audio from your smartphone, tablet, or any Bluetooth-enabled device through your car's stereo system. With Bluetooth 5.0 technology, you'll enjoy a stable and high-quality wireless connection, ensuring crystal-clear sound. The built-in microphone allows for hands-free calling, keeping your hands on the wheel and your focus on the road. Additionally, this transmitter features a USB charging port, allowing you to conveniently charge your devices on the go. Compact and sleek, it effortlessly integrates into your vehicle's interior. Upgrade your in-car entertainment and stay connected with this versatile Bluetooth FM Transmitter. Please note that it may require some setup and pairing with your devices.