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Important safety instructions
Intended use
Intended use includes:
• having read this instruction manual, especially the chapter “Important
safety instructions” on page 2,
• 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 Lithium-Polymer battery pack
If abused or misused, the battery pack may leak. In extreme cases, it 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. When not using the
product for extended
periods of time, remove
the battery pack from
the product.
Immediately remove the
battery pack from an obvi-
ously defective device.
Only use battery packs
recommended by
Sennheiser.
Dispose of the battery
pack at special collection
points or return it to your
specialist dealer.
Switch battery pack-
powered products off
after use.
Only charge the battery
pack with the appropriate
Sennheiser chargers.
When not using the
battery pack for extended
periods of time, charge
it regularly (about every
3months).
Only charge the battery
pack at ambient tempera-
tures between 10°C/50°F
and 40°C/104°F.
Do not heat above 70°C/
158°F, e.g. do not expose
to sunlight or throw into a
fire.
Do not mutilate or
dismantle.
Do not continue to use a
defective battery pack.
Do not short-circuit. Do not expose to moisture.