NoCharging Design: Plug this BT car adapter into your car's integrated card slot and enjoy music streaming and calls without hassle charging or wiring. Adjustable Frequency: Converts any car stereo system into a Bluetooth speaker with the Blue Tooth Car Adapter. Tune to 87.5108 MHz for wireless music streaming. Advanced Music Technology: Automatically identifies and delivers audio performance from various TF card brands, enhancing your driving experience with sound quality. Enjoy seamless plugandplay convenience. Improved Connectivity: Bluetooth 5.3 provides faster transfer speeds and clearer sound quality. Enjoy uninterrupted music and seamless calls. Use scenarios Invehicle music streaming in cars without Bluetooth: Pair your phone via Bluetooth with the adapter, choose a FM frequency in the 87.5108 MHz range, and start playing music through the car speakers. TF card playback on the road: Insert a TF card into the adapter; it automatically identifies supported formats and plays music with , without extra setup. Hands calls while driving: Use the adapter to handle calls with clear audio while maintaining a stable Bluetooth connection for uninterrupted communication.