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Important safety information
RS 220 | 3
Intended use
Intended use of the product includes
• having read this instruction manual, especially the chapter “Important
safety information”,
• using the product within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the product other than as described in this
instruction manual, or under operating conditions which differ from those
described herein.
Safety instructions for the NiMH rechargeable batteries
If abused or misused, the rechargeable batteries may leak. In extreme
cases, they may even present
Please understand that Sennheiser does not accept liability for damage
arising from abuse or misuse.
• a heat hazard,
• a fire hazard,
•an explosion hazard,
• a smoke or gas hazard.
Keep away from
children.
Only charge the rechargeable
batteries in the headphones
(see page 14).
Observe correct
polarity.
Pack/store charged batteries
so that the terminals cannot
contact each other – danger
of shorting out/fire hazard.
Do not expose to
moisture.
Switch rechargeable battery-
powered products off after use.
Only charge recharge-
able batteries at
ambient temperatures
between 10°C/50°F
and 40°C/104°F.
When not using rechargeable
batteries for extended periods
of time, charge them regularly
(about every 3 months).
Do not mutilate or
dismantle.
Do not heat above 70°C/158°F,
e.g. do not expose to sunlight
or throw into a fire.
Immediately remove
rechargeable batteries
from an obviously
defective product.
Do not continue to use defec-
tive rechargeable batteries.
Only use rechargeable
batteries specified by
Sennheiser.
Dispose of rechargeable bat-
teries at special collection
points or return it to your
specialist dealer.