Once you have a dial tone, fine-tune
your amplifier by calling a friend.
If you sound as good as your hand-
set, your amplifier is properly
adjusted.
1. If your voice is faint:
a. First, try moving the slide con-
trol on the bottom of your amp
toward “+”
b. If your voice is still faint, set
sensitivity switch 2 to OFF and
move the slide control to the
middle
c. Bend the boom to position the
microphone closer to your
mouth
2. If your friend cannot hear you
at all:
a. Set switch settings to match
those to the right
b. Remove the batteries
3. If you sound like you’re in a
tunnel:
a. Move the slide control
toward “–”
4. If your friend’s voice is low:
a. First try rotating the listening
volume control toward “9”
b. If your friend’s voice is still low,
turn down the listening volume
and set sensitivity switch 1
to OFF
2
SENSITIVITY
ON
1
2
3 4
1
3
4
MIC
C
E
COMPATIBILITY SENSITIVITY
ON
ON
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4
a
b
a
H E L L O S E
T
Fine-Tuning
SENSITIVITY
ON
1
2 3 4
b
