USB Bluetooth 2 in 1 Transmitter + EDR Receiver

Transmit Mode (TX): Plugs into a computer or TV USB port for power. It uses the included 3.5mm AUX cable to send sound from the TV or PC to your wireless Bluetooth headphones or speakers.Receive Mode (RX): Plugs into a USB power source. It connects via the 3.5mm cable to wired speakers, home stereos, or car audio systems so you can play music directly from your phone.