【Transmitter Receiver 2 IN 1】 Universal Bluetooth audio adapter makes your TVs and other devices Bluetooth enabled to stream audio to your Bluetooth headphones, or makes your home stereo Bluetooth enabled to receive the wireless music streaming from your phone and tablet. Works with device which have 3.5mm interface. | 【Bluetooth 5.0 EDR】With upgraded V5.0 EDR technology, our wireless audio adapter enables more stable connection with devices and achieve a range of up to 50ft (15m) in open air and up to 30ft(10m) indoors. Operating range can be affected by multiple factors. | 【Plug & Play】You can remove adapter from USB port and insert it again to switch transmitter/receiver mode. Red light is transmitter mode, blue light is receiver mode. No driver required. Note: As long as the light is on, it can be used normally, and you can ignore the prompts such as 'USB cannot be recognized'. | 【HD Sound】Sound quality debugged by a professional tuner, it will be better to use the left and right headphones together. | 【USB Power Supply】Charge it on the USB port and connect it to the device via audio adapter(included) while using, never worry it will run out of power when listening to music. Providing 45-days refund, 12-month warranty, 24-hours response service.