First, make sure your headphones are turned on with a single press of the upper button on the back of the right earcup. Next, press and hold the power button for 3 seconds to put the headphones into pairing mode. Please note, if this is your first time connecting the headphones, they will automatically turn on right into this pairing mode. Voice prompts will provide you with additional guidance. We recommend you use the Bose Music app to complete the pairing process, however, you can also use the Bluetooth settings on your device.\rWhen the Bose USB Link Bluetooth module is plugged into your computer, and both your computer and the Headphones 700 UC are powered on, you will be able to easily change audio sources from mobile device to personal computer.