9
Do not heat above 40 °C/104 °F, e.g. do not expose to
sunlight or throw into a fire.
Do not expose to moisture.
Do not short-circuit.
Do not mutilate or dismantle.
Store the units/rechargeable batteries in a cool and dry place
at room temperature (approx. 20 °).
Only charge rechargeable batteries with the appropriate
Sennheiser Communications chargers.
When not using rechargeable batteries for extended periods
of time, charge them regularly (every six months for about
one hour).
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