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| When combined with earphones,
this kit enables the user to communicate whilst wearing breathing
apparatus or restrictive head protection. The mic is held on the
top of the head by a soft rubber pad and picks up speech via skull
vibration; at the same time, wind and background noise are excluded.
A pair of slim earphones or an acoustic output are available. This
design leaves the hands free and face unobscured when worn by rescue
and hazard protection personnel, who still retain the ability for
direct hearing and speaking. |
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