{Bluetooth 5.0 technology} - Built-in Bluetooth 5.0 chip provides a more stable connection for streaming music over FM frequency and making hands-free calls, allowing for faster pairing with compatible devices, built-in microphone makes it easy to answer or end a call with one key without the need to pick up and hold your phone, making your driving process safer.{3 Modes 7-Color Changing Light} - The FM transmitter has 3 light modes: 7 color light, 7 color breathing light and a dark mode to meet the needs of every driver.{Intelligent Dual USB Ports & Fast Charging} - Coming with 2 USB and one TYPE-C ports, which can charge two devices simultaneously. Built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection, it will effectively ensure safe charging{Wide Compatibility} - Compatible with all devises supporting bluetooth such as iPhone, iPad, Samsung, Xiaomi, Huawei, etc. And with a usb music stick.