Equipped with AUX/U disk/ lotus interface, the interface is rich and complete, and it is compatible with multiple devices. It is firm and to plugging and unplugging, and the Type-C interface is used for stable power supply. This is a Bluetooth receiver, which only supports RX receiving mode and connects to an audio playback device with a speaker Receive Bluetooth signals to wirelessly. Old active speakers/computer speakers instantly upgrade to Bluetooth connection function, making it more convenient to listen to music wirelessly with mobile phones, and enjoy CD-level stereo sound quality. Upgraded Bluetooth 5.4 chip, signal transmission about 10 meters away, fast response without lag, improved stability of wireless connection, strong anti-interference. Upgraded NFC connection: support NFC mobile devices to automatically connect with . Name: Bluetooth receiver Bluetooth version: V5.4 Connection distance: 10m (obstruction-free) Power supply interface: Type-C (No built-in battery, need to be plugged in) Decoding method: Playback method: Bluetooth/U disk Signal-to-noise ratio: 95dB Color: Black Material: plastic Package Contents: 1 * host 1 * Type-C power cable 1 * 3.5 to 3.5 audio cable 1 * 3.5 to audio cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.