This Bluetooth 5.0 Audio Receiver Adapter with TF Card MP3 Player provides a straightforward way to add wireless Bluetooth audio to nonBluetooth speakers and to play MP3 files directly from a TF card. It supports universal Bluetooth wireless audio streaming, making it compatible with a wide range of devices and setups. Key benefits Convert wired speakers into Bluetoothenabled devices for easy wireless listening from phones, tablets, or computers. Access MP3 music directly from a TF card without needing a separate player or connected device. Bluetooth 5.0 delivers improved range, stability, and audio performance compared with earlier Bluetooth versions. Simple plugandplay use with minimal wiring for a clean, clutter setup. Key attributes Functionality: Bluetooth 5.0 audio receiver adapter combined with a TF card MP3 player, enabling wireless streaming and local MP3 playback. Compatibility: Designed for universal Bluetooth wireless audio streaming, suitable for pairing with most Bluetoothenabled devices and streaming to a connected audio system. Size: not specified in listing. Material: not specified in listing. Performance: Bluetooth 5.0 technology provides stable wireless connections and efficient power usage to support reliable audio streaming. Use cases Home stereo upgrade: Pair with a smartphone, tablet, or computer to stream music wirelessly to a wired home speaker, receiver, or compact system. TF card playback: Insert a TF card with MP3 files to listen offline on a speaker or amplifier without using a mobile device. Incar or portable setup: Connect to a car stereo or portable speaker system with an analog input to enable Bluetooth streaming from a phone or tablet, while also supporting MP3 playback from a TF card for independent playback.