CLEANING AND CARE
•
Clean the viewer and battery with a damp cloth and mild detergent if
necessary. Do not use all-purpose cleaners as these may damage the
seals and impair the water resistance.
•
Make sure that there is no standing water in the USB connector before
inserting the cable.
•
Do not insert sharp objects into any holes in the viewer as this may
damage the mesh and impair the water resistance.
•
Do not use metal objects to clean the USB port as this may cause
electrical damage.
•
The waveguide may be cleaned using a microfiber cloth and lens
cleaner or warm water and a mild detergent. Do not hold or handle the
M4000 by the screen. Avoid exerting pressure on the screen as that
can cause it to crack.
13
