To set up your headphones, follow these steps:
Setting up the headphones
Tilt the headband away from the right earcup and open the battery compartment. Insert the AAA alkaline battery into the battery compartment
To activate noise cancelling, switch the power button to the left. The battery indicator glows green
Note: When the power is off, the headphones will still provide audio. Keep the power on for the best audio quality.
Insert the audio cable into the connector on the left earcup
Connect the other end of the audio cable to the standard 3.5 mm headphone jack on your audio device