✓?FEATURE?- Plug and play, easy to operate, small in size, light weight, easy to carry and storage. ✓?RECEIVER MODE?- Receiver mode, which can transfer audio from smartphones, tablets and computers, inserted device can connect with the phone and play music. ✓?TRANSMITTER MODE?- In transmitter mode, you can transfer audio from TV, speakers and players without using Bluetooth, and can use Bluetooth headsets to connect. ✓?LED INDICATOR?- This Bluetooth USB audio adapter has an LED indicator, so you can easily distinguish the different modes. ✓?HIGH QUALITY MATERIAL?- Made of high-quality materials, sturdy and durable, stable in use, fit for phone call, and the signal is stable and fast.