Silvercrest SFR 2.4 A1 - Manual (Page 31)

SilverCrest SFR 2.4 A1
Repairs
Repairs are required when this device has been damaged in any way, for
example when liquid has entered the product, when the product has been
exposed to rain or moisture, when the product does not work normally or if
the product has been dropped. If smoke, unusual noises or smells are
noticed, switch off the device immediately. In these cases the device may
no longer be used until it has been inspected by authorized service
personnel. Please contact qualified personnel when repair is needed.
Never open the housing of the device, or the accessories. Only use a
clean, dry cloth for cleaning. Never use any corrosive liquids.
Children
Electrical devices do not belong in the hands of children. Do not allow
children to use electrical devices when not under supervision. Children may
not understand that they can be dangerous. Batteries and small parts
represent potential choking hazards. Keep batteries out of the reach of
children. If a battery is swallowed, seek medical help immediately. Keep the
packaging away from children too as there is a risk of suffocation.
Conventional and Rechargeable Batteries
These headphones use a built-in rechargeable Lithium-Ion battery. The
rechargeable battery may only be removed or replaced by an authorized
service centre.
Insert the batteries with the correct polarity. Refer to the polarity markings
inside the battery compartment. Do not try to recharge the batteries and do
not throw batteries into the fire. Do not mix battery types (old and new or
carbon and alkaline, etc.). Remove the batteries when the device is not to
be used for a long time. Improper use may cause explosions and danger to
life.
Respect the environment. Old batteries do not belong in the
domestic waste. They must be handed in to a collection
point for waste batteries.
RF Interface
Turn the device off when onboard an aircraft, in a hospital, in an operating
theatre or in the vicinity of medical electronic equipment. The RF signals