INFRARED CLASSROOM AMPLIFICATION SYSTEM USER'S MANUAL 780iR

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 
Rear Panel Controls
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e three frequency
equalization adjustments are factory set
for normal classroom environment.
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HM-70 Controls
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Optional HM-70 Handheld
Microphone/Transmitter:
Overview
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

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
Do not attempt to charge alkaline
batteries̶they can overheat and
expand, creating a significant hazard
and damaging the LightMic.
[ caution! ]
(is is not covered by the warranty.)
Power/Charge LED
Indicator
Power Switch
Charging Jack
Battery
Compartment
Channel Select Switch
Gain Adjust
3
1
4
2
slide to open
top view of battery compartment