Earloop; Installation; Removal - Black Box HS400A Manual

Pro-fit mobile headset
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4. Earloop

The Pro-Fit Mobile Headset can
be fitted with a choice of earloop
sizes. An earloop completely
encircles the ear and positions the
speaker directly over the ear
canal. Four earloops are supplied,
each marked as follows: X (Extra
Small), S (Small), M (Medium)
and L (Large). The size mark
appears near the thinnest portion
of the earloop. The earloop
connects to the receiver using a
T-hinge (see Figure 4-1).
Figure 4-1. Earloop Assembly.

4.1 Installation

1. Remove the earhook or
headband.
2. Select the desired earloop
size.
3. Snap the T-hinge onto the
center portion of the
earloop.
4. Hold the receiver firmly in
one hand and press the stub
end of the T-hinge with the
other hand into the
mounting post on the
receiver until it snaps into
place.
5. Pivot the earloop so that it
encircles the receiver.

4.2 Removal

1. Rotate the boom 90° (see
Figure 4-2).
CHAPTER 4: Earloop
Figure 4-2. Loop Disassembly.
2. Pivot the earloop away from
the receiver and rotate the
earloop so it is
perpendicular to the
receiver body.
3. Firmly grasp the earloop by
placing your fingers
through the ring.
4. While grasping the receiver
housing, pull apart until the
T-hinge pops free of the
mounting post.
13

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