3
BEFORE YOU BEGIN
Fig. 1
Select one of the four earpieces and insert it into the receiver,
aligning the pins with the notches. Rotate the earpiece clockwise,
1/4 turn, until it clicks into place.
Fig. 2
Try all four earpieces until you find one that comfortably rests
against, but does not enter, your ear canal.
ADJUSTING THE EARPIECE
Fig. 3
Grasp the earhook and move the receiver housing out as far
as possible.
Fig. 4
Place the earhook above and slightly in front of your ear and
rotate down and back.
Fig. 5
Adjust the receiver housing up and down and side to side until
the earpiece is comfortably positioned in your ear.
ADJUSTING THE MOUTH PIECE
Standard Models
Fig. 6
Hold the headset securely against your ear with one hand.
With your other hand, adjust the voice tube so that the tip
sits two finger-widths from the corner of your mouth. To
prevent breath noise, avoid positioning the voice tube in front
of your mouth.
Noise Cancelling Models
Fig. 7
Carefully shape the boom with both hands as shown. Do not
bend or twist the boom within 1/2 inch of the microphone
Fig. 8
Position the boom so that the microphone sits two finger-widths
from the corner of your mouth.
Make sure the front of the microphone faces your mouth. If
necessary, carefully rotate the microphone into the proper
position. Avoid repeated twisting of the boom.
Fig. 9
To temporarily move the Noise-Cancelling microphone boom
away from your mouth, rotate the boom grip. To return the
boom to it’s original position reverse the rotation.
GB
DIAGRAM KEY
5259 TriStar User Guide pgn 3/1/01 11:21 am Page 5
