The Home RTX 2 has a special function, when in TX mode and plugged into a PC USB port, the Home RTX 2 will function as a long-range USB dongle allowing  you to use your Bluetooth headphones or speakers for 2 way communication in Gaming and VoIP calls.Pair the Home RTX 2 with your favorite Bluetooth headphones or speakers.Using the supplied USB cable, connect the Home RTX 2 to your PC or Mac.On your PC, go to the audio settings.  For BOTH the speaker output and microphone input, select CSR audio dongle.Now you can communicate wirelessly with others in online games and video calls.