Motorola HX550 Mode D'emploi page 6

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Basics
a few essentials to get you started
Turn on & off
To turn your headset on and off, flip the boom to the
open (extended)/closed (folded) position.
Wear it
You can optimize the fit of your headset with the
on-ear hook, in-ear hook or ear gels with no hook.
in-ear hook
1 Rotate and turn your ear hook for left or right use.
4 Basics