Dual USB Charging Ports: This car charger features dual USB ports, QC3.0 & 5V/2.4A, supporting simultaneous charging of 2 devices with overcharge protection. The QC3.0 USB charging port can quickly and efficiently charge your device, with charging speeds up to 80% faster than normal. The 5V/2.4A USB interface with music symbols can not only charge but also read U-disks and play your favorite music. Bluetooth 5.0: Built-in Bluetooth 5.0 chip allows you to enjoy faster data transfer speeds and a more stable connection between your device and the audio receiver. The transmission reaches lossless levels, the response time is faster, power consumption is low, and the sound quality is nearly lossless. No need to look down at your phone often, making driving safer. Hands-Free Calling: Built-in microphone and hands-free function allow you to conveniently answer, hang up, reject, or make calls via the hands-free function, enjoying safe driving and ensuring the safety of your family. With CVC noise reduction technology, you can easily make smooth and clear hands-free calls. Broad Compatibility: The FM transmitter supports Bluetooth and U-disk music playback, automatically recognizing and playing music in multiple formats. It's not limited to mobile phones or car models, making it suitable for all types of mobile phones, MP3s, MP4s, cameras, and other digital products. Ambient Ring Light and LED Display: This FM transmitter is equipped with a colored LED ambient light, which is convenient to use in the car's dark environment and also creates a cheerful atmosphere. It easily and conveniently displays volume and car voltage. The LED display shows the FM frequency, making it easy to use and ensuring safe driving at night.