1、2 in 1 transmitter and receiver,bluetooth adapters have 2 modes, transmitter and receiver,transmitter mode (TX),Bluetooth 2 in 1 adapter can transmit stereo audio wirelessly and add Bluetooth function for TV, PC and all audio devices lacking this function, receiver mode (RX), suitable for home or vehicle music streaming sound systems. 2、Low delay and A2DP stereo,bluetooth receivers requiring low latency support,wireless bluetooth adapter uses bluetooth 5.0 technology to provide stable connection and reduce delay between devices. 3、Dual stream and multipoint, when used as bluetooth receiver, wireless stereo transmitter can be paired with two devices,plug and play,no driver is required, just insert it. 4、Extensive compatibility, relies on A2DP bluetooth configuration file for fluent operation, perfectly synchronized hifi audio playback. 5、Small size and lightweight, easy to carry and store, convenient to use.