The upgraded version adds USB flash drive reading and adopts industrial grade current sound isolation technology to eliminate Bluetooth current sound. Easy pairing and fast connection. Simple, atmospheric appearance, fashionable and cool, gathering multiple connection methods. Lossless music, perfect in one second. Intelligent for young people NFC Bluetooth audio adapter enables wired speakers to become wireless Bluetooth speakers in seconds. Let you enjoy high-quality music while playing, and from your phone/tablet through your home speaker. High quality Bluetooth 5.0 lossless audio receiver supports Bluetooth/NFC enabled mobile phones, tablets with Bluetooth/NFC functionality, laptops with Bluetooth/NFC functionality, and other digital products with Bluetooth/NFC functionality Identify three major advantages: 1.It can help you upgrade your old to a Bluetooth enabled at cost; 2.It can conveniently "dump" (transmit) music from the phone to the audio device for playback; 3.It can free you from the constraints of various connections, whether you are sitting on a comfortable sofa or moving in a room, it can transmit music from your phone to your home , enjoying a private music feast Colour:Black Material:plastic Package Contents: 1 * Bluetooth Receiver 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.