Sennheiser BTD 300 Instruction Manual page 8

BTD300Audio_532802_0909.book Seite 4 Freitag, 21. August 2009 9:34 09
Keep away from children.
Do not heat above 70°C/158°F or throw into
a fire.
Do not expose to moisture.
Do not mutilate or dismantle.
Switch rechargeable battery-powered
devices off after use.
When not using rechargeable batters for
extended periods of time, charge them
regularly (about every three months).
Only charge rechargeable batteries
at ambient temperatures between
10°C/50°F and 40°C/104°F.
Dispose of the product, together with the
built-in rechargeable battery, by taking it
to your specialist dealer or your Sennheiser
partner.
4