1、[2 IN 1 DEVICE] Support Bluetooth wireless receiving mode and transmitting mode, so that the old wired device can become Bluetooth device in seconds. 2、[WIRELESS CONNECTION] Just plug in the AUX interface of the speaker or power amplifier, and change the Bluetooth mode in seconds, save the trouble of wiring, and enjoy the wonderful wireless. 3、[SUPPORT U DISK NFC] Support mobile storage device U disk, no network can play songs as you like. Support NFC mobile phone device, touch connection without manual connection. 4、[BLUETOOTH 0] High quality Bluetooth 0 decoding chip transmits better sound quality. High performance Bluetooth chip, supports various types of speakers and computer equipment on the market. 5、[EFFECTIVE RANGE] The effective range of the Bluetooth 0 transmitter and receiver is up to 15m / 49ft. You could use it to Bluetooth enable your favorite wired speaker, soundbar, home theater, etc. 1 x NFC Bluetooth Receiver Transmitter 1 x AV Cable 1 x 3.5mm Male To Male Cable 1 x Type C Charging Cable 1 x Manual Item Type: NFC Bluetooth Receiver TransmitterMaterial: ABSModel: T39Bluetooth Name: T39Bluetooth Version: 5.0Effective Range: Approx. 15m / 49ft