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Battery
Door
Tab
Left Ear
Right Ear
IRH-280 Two Channel Infrared Headphones
11/19/13
IRH-280 Dual Audio Headset for 2.3/2.8 MHz
The over the head unit has a two sensor, omni directional optical lens array. It has easily accessible audio level
controls, and a power/channel switch. It is powered by two AAA batteries.
Batteries
When new batteries are needed, remove the battery cover by pushing the tab up and lifting the cover off.
Install AAA batteries with the + (positive) end as indicated above. Re-install battery cover.
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OFF
Channel A/B
Switch
Right Ear
Volume
Control
Left Ear
Volume
Control
Monitor
Switch
Hearing Aid/Earphone
Jack
Adjustable Headband
Adjust the headband to the size needed for the individual patron by pulling or pushing the ear pieces.
Controls
Use the power switch to turn the unit OFF or to select channel A or B. Adjust the left and right volume controls
as desired to achieve a comfortable listening level. The monitor switch will mute the sound while the monitor
button is held in. The patron may use the headphones as a receiver by plugging their personal hearing aid or
earphones into the jack.
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Switch
B
LED
Green
LED
Red
Switch
A
Switch
OFF
LED
OFF
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