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SING

OUR

EADSET

Holding the control module upright and facing you:

• Use the left knob to adjust volume in the left earcup.

• Use the right knob to adjust volume in the right earcup.

Controlling the volume of a single battery powered headset

With ANR on:

1. Set the aircraft communication system to a safe operating level.

2. Turn each volume knob on the headset control module down to

decrease, or up to increase the volume of the earcup it controls.

When an aircraft has more than one headset connected to its audio

system, the pilot in command should adjust the volume of his/her

Bose

Aviation Headset

1. Turn off ANR by setting the power switch to OFF.

2. Turn each volume knob on the headset control module up to its

maximum setting.

3. Adjust the master volume on your aircraft intercom or radio until

you can hear communications clearly.

Note: This should be done in a noisy environment.

4. Adjust the volume knobs on the headset control module to

balance the volume between the left and right earcups.

5. Turn ANR back ON.

6. Turn down the aircraft intercom or radio master volume to the

level you prefer.

After the pilot's headset volume is set, passengers may adjust the

volume of their headsets. Have them follow steps 1 and 2. See "Con-

trolling the volume of a single aircraft powered headset" on page 24.

New alkaline AA batteries (IEC LR6) will generally supply 30 to 40

hours of power for the headset. Battery life varies with the ambient

noise level of the aircraft, temperature, ear cushion condition, and

age of the batteries.

as follows: