Silvercrest SSC 1 A1 - Manual (Page 59)

SilverCrest SSC 1 A1
English - 57
 contact with spray, dripping water and corrosive
liquids must be avoided and the sports glasses
should never be operated near water, and it must
especially never be immersed (do not place any
objects filled with liquids such as vases or drinks
near the sports glasses);
 no fire sources (e.g. burning candles) are placed
on or near the sports glasses;
 no foreign bodies can penetrate into the device;
 the sports glasses are not exposed to any extreme
temperature fluctuations as this can cause moisture
through condensation and cause short-circuits. If the
sports glasses are exposed to strong temperature
fluctuations, wait (approx. 2 hours) until they have
reached ambient temperature before turning them
on.
 the sports glasses are not subjected to excessive
shocks or vibrations;
 the sports glasses and their accessories are not
damaged in order to avoid any further risks.
Therefore you must inspect the sports glasses and
their accessories regularly for any damage. If you
find any component damaged, it must not be used.
Never open the sports glasses housing and have all
repairs performed by qualified technical stuff only;
Failure to heed the warnings above may result in
damage to the device or injury.