Bluetooth 5.0 Technology: Built-in Bluetooth 5.0 chip provides a more stable connection for streaming music on FM frequency and making hands-free calls, enabling faster pairing with compatible devices. The built-in microphone makes it easy to answer or end a call with the touch of a button without having to pick up and hold your phone, making your driving safer. 3 Lighting Modes & 7-Color Shift: The FM transmitter features 3 lighting modes: 7 colors of light, 7 colors of breathing light, and a dark mode to meet the needs of all drivers. Smart Dual USB Ports & Fast Charging: Comes with 2 USB ports and a Type-C port, which can charge two devices simultaneously. Built-in overcurrent protection, overvoltage protection, intelligent temperature control, and short circuit protection ensure safe and efficient charging. Wide Compatibility: Compatible with all devices that support Bluetooth, such as iPhones, iPads, Samsung, Xiaomi, Huawei, etc., and USB music sticks. Our Promise: Our team's top priority is to keep our customers satisfied. Please do not hesitate to contact our store if you have any questions or concerns.