3
En
gl
is
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1. The RSM should be worn at your shoulder as shown on
DO NOT cover or block the rear opening at your RSM
back housing to prevent performance degradation. For
instance, wearing the RSM at chest or abdomen will
block the rear opening. When this happens, noise from
the environment will not reach the front and rear opening
of the RSM in an equal manner. As a result, the
performance of your RSM will not meet the Noise
Canceling specification.
2. The RSM should be hand-held 2 inches away from your
mouth. The noise canceling performance of this method
is almost comparable to method 1) above.
FL0830064O
m
m
Figure 1
6871518M01.book Page 3 Wednesday, May 27, 2020 11:34 PM
