[Transmitter Receiver 2 IN 1] The portable adapter that can be used as either a transmitter or a receiver. Bluetooth adapter usb can be used on your car, PC, TV, laptop, home stereo system, headphones, smartphone, MP3 player, wired headphones, etc and it can make makes your TVs and other Non-Bluetooth devices to be transmitter or Receiver. Note:This device is not available for answering calls. | [Bluetooth 5.0 + EDR] With V5.0+EDR technology, our wireless audio Bluetooth adapter enables more stable connection with devices and achieve a range of up to 55ft in open air and up to 33ft indoors. *Operating range can be affected by multiple factors. | [Plug & Play，No Driver Required] You can remove the adapter from the USB port and insert it again to switch transmitter/receiver mode. Red light is transmitter mode, blue light is receiver mode. No driver required, easy to use. Works with the device which has 3.5mm jacks. | [Low Delay & HiFi Stereo] With low latency and fast transmission of low noise, ensuring excellent stereo sound. allows you to enjoy HiFi stereo music without wire restriction. | [Easy to carry] Bluetooth adapter usb is small, lightweight, space-saving, easy to carry and can be used anytime, anywhere.