Steinberg Systems SBS-TW-5S Manuel D'utilisation page 17

3.4. Cleaning and maintenance
a) Store the unit in a dry and cool place protected from moisture and direct
sunlight.
b) Do not spray the unit with a stream of water or immerse it in water.
c) Perform regular inspections of the unit checking technical fitness and any
damages.
d) Do not leave the batteries in the device when it will not be used for a long time.
e) Use a soft, damp cloth for cleaning.
f) Do not use sharp and/or metal objects (e.g. a wire brush or metal spatula) for
cleaning, as these may damage the surface of the material from which the unit
is made.
INSTRUCTIONS FOR THE SAFE DISPOSAL OF BATTERIES.
The devices are equipped with AAA batteries.
Remove used batteries from the device in the same way you put them in.
Return the batteries to a unit responsible for their disposal.