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Mic Gain Adjustment
Adjusting the microphone gain
According to JTSO approval C58a, the microphone output voltage is factory-preset to
400 mV. If the microphone output voltage is too high or too low for your intercom system,
it can be re-adjusted on the microphone. To do so, use a small slotted screwdriver and turn
the ‘Mic Gain Adjustment’ screw (see illustration on the left) until you have reached the
desired setting.
Folding up the headphones
For easy and space-saving transportation, the earcups can be folded up and tucked between
the headband.
Unfold the headphones by grasping both earcups and pulling them down and away from
the headband.
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