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Product safety
NOTICE
Only use zinc-air batteries or nickel-metal hydride
(NiMH) rechargeable batteries.
For example, do not use silver-zinc or lithium-ion
rechargeable batteries.
NOTICE
X
Protect your devices from extreme heat. Do not
expose them to direct sunlight.
NOTICE
X
Do not dry your devices in the microwave oven.
NOTICE
Different types of strong radiation, e. g. during
X-ray or MRI head examinations, may damage
devices.
X
Do not use the devices during these or similar
procedures.
Weaker radiation, e. g. from radio equipment
or airport security, does not damage the
devices.
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