Sennheiser Travel MM 450 Instruction Manual page 5

Intended use of the headset
Intended use of the headset includes
• having read these instructions, especially the chapter "Important
safety instructions" on page 2,
• using the headset within the operating conditions and limitations
described in this instruction manual.
"Improper use" means using the headset other than as described in these
instructions, 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
• a heat hazard,
• a fire hazard,
• an explosion hazard,
• a smoke or gas hazard.
Please understand that Sennheiser does not accept liability for damage
arising from abuse or misuse.
Keep away from children.
Observe correct polarity.
Dispose of the battery pack
at special collection points or
return it to your specialist
dealer.
Only charge the battery
pack with the appropriate
Sennheiser chargers.
Only charge the battery pack
at ambient temperatures
between 10°C and 40°C.
Do not mutilate or dismantle.
Immediately remove the
battery pack from an obvi-
ously defective device.
Only use the original
Sennheiser battery pack.
Important safety instructions
Do not pack charged batteries
loose – danger of shorting
out/fire hazard.
Do not short-circuit.
Switch battery pack-powered
devices off after use.
When not using the battery
pack for extended periods
of time, charge it regularly
(about every 3 months).
Do not heat above 70°C/
158°F, e.g. do not expose to
sunlight or throw into a fire.
Do not continue to use a
defective battery pack.
When not using the device for
extended periods of time,
remove the battery pack from
the device.
Do not expose to moisture.
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