channel. If audio is still not heard, check that fully
charged batteries are installed in the headphones.
Replacing The Headphone Batteries
Each set of headphones requires two AAA batteries for
operation. To replace the batteries:
• Locate the battery compartment on the left ear cup of
the headphones, and then slide the battery cover
downward.
• Replace the batteries, making sure to orient them
according to the polarity diagram shown.
• Replace the battery compartment cover.
Controls
The headphone power indicator and controls are located
on the right ear cup.
1 — Volume Control
2 — Power Button
3 — Channel Selection Switch
4 — Power Indicator
356 UNDERSTANDING YOUR INSTRUMENT PANEL