HJC Smart 20B User Manual page 10

SMART HJC 20B
3. Peel off the cover of the adhesive tape of the hook and loop
fastener for microphone and attach it to the inside of the helmet's
chin guard. Then, attach the wired microphone to the hook and
loop fastener.
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4. Insert longer hook of the right speaker unit into bottom hole of
the speaker pocket. Place the Microphone wire under the bottom
hook of the speaker unit when installing. Insert shorter hook of the
right speaker unit into the top hole of the speaker pocket.
[Make sure that the Microphone wire
is not pressured by the speaker unit when installed]
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