【2 in 1 Bluetooth Transmitter and Receiver】With built-in advanced technology, both transmitter mode and receiver mode are supported. When you pair two devices in TX mode, both can play music simultaneously; Only one device can play music at a time when you pair two devices in RX mode. 【Low Latency】The Bluetooth 5.0 Adapter uses 5.0 low latency technology that eliminates delays, for superior audio quality, has powerful functions for wireless audio streaming. You can enjoy better quality sound without loss and it costs less time during transmission, low latency. 【Mini Design & Fast Connection】Bluetooth transmitter receiver with small size is ideal for home and travel. Slide the button to choose TX(transmitter) / RX(receiver) mode, automatic connection without having to download apps. So it is easy to use. 【Wide Compatibility】The portable bluetooth adapter can be used as the transmitter or receiver. In transmit mode: non-Bluetooth TV, MP3/MP4, PC, CD player, Pod etc. can pair with