Convert any car stereo into a Bluetooth speaker with the Blue Tooth Car Adapter. This device is designed to provide wireless music streaming, hands calling, and simple operation through your car's FM radio. Key benefits and features Adjustable Frequency Tune to any FM frequency between 87.5 and 108 MHz to enable wireless audio transmission from your device to your car stereo. Improved Connectivity Bluetooth 5.3 delivers faster pairing, clearer sound quality, and a stable connection for uninterrupted music and calls. Advanced Music Technology Automatically identifies and delivers audio from various TF card brands, enhancing your driving experience with higher quality sound and plugandplay convenience. NoCharging Design Insert the adapter into your car's integrated card slot and enjoy music streaming and calls without the need for charging or extra wiring. Compatibility and performance Function: Converts a standard car stereo into a Bluetoothenabled audio receiver with FM transmission and TF card support. Compatibility: Works with Bluetoothenabled devices and supports TF cards for direct playback. Performance: Bluetooth 5.3 provides improved speed, range, and audio clarity for music streaming and hands calls. Use scenarios Daily commute Pair your smartphone via Bluetooth, stream music, and make or take hands calls through the car speakers without changing the car's existing setup. TF card playback Insert a TF card into the adapter to play stored music directly through the car stereo, providing an alternative to Bluetooth playback. In cars without builtin Bluetooth Use the FM transmission capability to connect a Bluetoothenabled device to the car's FM radio, enabling wireless audio and calls without modifying the car's wiring.