Upgraded Bluetooth 5.3 connectivity The device uses Bluetooth 5.3 to enable faster pairing, lower latency, and more reliable connections with minimal audio degradation. It supports automatic reconnection to known devices, ensuring seamless calls and music playback without manual reconnects. Hands-Free Calling Designed for safe driving, this system provides hands-free calling with a built-in microphone for clear communication. You can make and receive calls without taking your hands off the wheel, improving driving convenience and safety. Dual Mics for Noise Suppression and Hands-free Calls Two built-in microphones with CVC noise suppression reduce ambient environmental noise, delivering clearer hands-free calls. A single multi-function button handles answering, rejecting, hanging up, and recalling calls, making it easy to switch between calls and music. Wider Range Compatibility The transmitter works with a wide range of smartphones and vehicles, maintaining a stable connection for uninterrupted music playback. Its broad FM frequency range supports a consistent and clear wireless audio experience with reduced interference. Use scenarios - Daily commuting: Pair with your smartphone to receive hands-free calls and stream music through the car stereo without taking attention away from driving. - Long road trips: Enjoy clear, uninterrupted audio and calls in noisy environments thanks to noise suppression. - Carpool or shared vehicles: Easily switch between different smartphones and resume music playback with reliable automatic reconnect and simple one-button controls.