Using the Headphones

1. Put on the headphones.
2. Plug the headphones into the audio component. (Use supplied plug adapter for in-flight use.)
3. Slide the power switch to ON. The Operation indicator lights up. (Headphones work without noise-canceling when power is OFF.)
4. Select the noise canceling mode: WIDE for wide-range noise (e.g., airplanes) or LOW for low-range noise (e.g., trains, buses).

Folding the Headphones

Gently fold the earcups inward towards the headband.

Battery Insertion/Replacement

1. Open the battery cover carefully.
2. Insert one AAA battery, observing correct polarity.
3. Replace the cover. Replace battery when Operation indicator fades or doesn't turn on for optimal noise-canceling performance.