INFRARED CLASSROOM AMPLIFICATION SYSTEM USER'S MANUAL 780iR

Front Panel Controls
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HM-70 Operating Instructions
Charging
Rechargeable batteries are pre-installed.
  
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 
 
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 
NiMH batteries maintain their charge for
a full day of normal classroom use. Always
turn the HM-70 off when not in use.
Operation
e Channel A/B switch is located inside
the battery compartment.
e switch is set to
Channel B at the factory.
 
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 
Holding and Positioning
 
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