If your transmitter doesn’t have its own battery, you will need a power source (such as a USB). Now follow the below steps: Connect the transmitter to the power source. Then connect it to the audio outputs (3.5 mm or RCA) of your TV. Now, press the power button of the transmitter and hold it down for a few seconds. A light will start blinking in the transmitter, which means the switch is on. Now, pair the transmitter with your Bluetooth headphone. It’s all done now.