Transmitter / ReceiverUniversal Bluetooth audio adapter enables your TV and other traditional devices without Bluetooth to stream audio to your Bluetooth Headphones, or enables your home stereo to receive the wireless music streaming from your phone or tablet.Optical Digital / AUX Connection Two connection methods are supported. When using on a TV that has an optical digital audio output, it is recommended to connect the bluetooth adapter with the included optical digital cable.* This product can be used with X-Box (optical digital connection only).Double StreamingStream audio to two Bluetooth headphones or speakers simultaneously. Share the music with your friend or family. Long play timeBuilt-in 1100mAh battery, play time can reach 30H, and can be used while charging. High-fidelity, low-latency. Support optical fiber access, faster transmission speed.