Installing The 20S On Your Helmet; Helmet Installation - Sena SP38 User Manual

3 INSTALLING THE 20S ON YOUR HELMET

3.1 Helmet Installation

To securely install the 20S on the helmet, please follow this procedure.
1. Loosen the two screws on the back plate of the clamp unit using
the enclosed allen wrench. Insert the back plate of the clamp unit
between the internal padding and external shell of the helmet, and
tighten the two screws. Please make sure that the microphone is
located properly close to your mouth when you wear the helmet.
2. Depending on the size and shape of your helmet, you may need
to change the thickness of the rubber pad between the clamp
plates. You can find two extra rubber pads in the box. To increase
the overall thickness, attach the thinner one to the original rubber
pad or replace the original rubber pad with the thicker one.
3. Please adjust the direction of the microphone so that the fin side
of the microphone is facing outward; away from your lips. You can
easily recognize it by touching the fin with your fingers.
20S
Fin
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