Features: 1NFC Bluetooth audio receiver and transmitter, wireless more freely, so that old wired devices can be turned into Bluetooth intelligent devices in seconds. 2Three modes can be switched by one button, receiving mode, transmitting mode, memory card mode, and it can also be transmitted when the memory card is inserted. 3Just plug in the speaker or the AUX interface of the power amplifier, and the Bluetooth speaker can be changed in seconds, eliminating the hassle of wiring. 4Insert the car AUX port, connect the mobile phone Bluetooth to the car speaker, listen to music wirelessly, and make the ambience cheer up. 5It supports the connection up to 10 meters/33 feet, controlling the music playing in a long distance. Package included: 1 x Receiver Transmitter 1 x Audio Cable 1 x RCA Cable 1 x Data Cable 1 x Instruction Manual