Why 3 IN 1 ?
1.Transmitter Mode (TX): Wirelessly transfer audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers.
2.PC Audio Transmitter Mode: Wirelessly transfer audio from the PC, notebook to Bluetooth headset or speaker through USB port, no audio cable is required.
3.Receiver Mode (RX): Wirelessly transfer audio from your Bluetooth-enabled phone, tablet, or computer toyour wired stereo, speakers, or headphones.