C. Position the microphone inch from your
mouth, with the gain adjustment cap facing
away from you (visible when you remove the
mic mu).
Note: The microphone will not transmit unless
plugged into an intercom.
Battery Installation
The Sierra headset requires two AA batteries
(included). Use alkaline or lithium batteries for
best performance.
A. Open the controller battery/DIP switch door
by either pressing down on the
circle icon or by pulling open the
door along the notched edges.
Insert two AA batteries with the
correct polarity positioning.
B. The LED ashes GREEN when
charged batteries are in use
and the power is on.
C. When batteries begin to
run low the power LED
ashes red.
Battery/DIP switch door
Stereo/mono switch
5
Getting Started
This side of the microphone
should face away from you.
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