{Bluetooth 5.0 Technology} - The Bluetooth Car FM Transmitter features a built-in Bluetooth 5.0 chip, ensuring a more stable connection for FM frequency music streaming and hands-free calls. This Bluetooth Aux Car Adapter allows for faster pairing with compatible devices. The built-in microphone makes it easy to answer or end calls with a single press, eliminating the need to pick up your phone, thus making your driving safer. {3 Light Modes, 7 Colors} - The Bluetooth Car FM Transmitter offers 3 lighting modes: 7-color light, 7-color breathing light, and a dim mode to meet every driver's preference. {Smart Dual USB Ports & Fast Charging} - This Bluetooth Car Adapter comes with 2 USB ports and a Type-C port, allowing you to charge two car radio FM transmitter devices simultaneously. With built-in overcurrent protection, overvoltage protection, intelligent temperature control, and short-circuit protection, this Bluetooth Car Adapter effectively ensures safe charging. {Wide Compatibility} - This Bluetooth Car Radio is compatible with all Bluetooth-enabled devices, such as iPhone, iPad, Samsung, Xiaomi, Huawei, etc. It also supports USB music sticks. Hands-Free Calling - The Bluetooth Car Transmitter supports Bluetooth hands-free phone calls via its built-in microphone.