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Temperature extremes may affect the ability of the battery to charge. Always try to keep the
device between 15 °C and 25 °C (59 °F and 77 °F). Leaving the device in hot or cold places,
such as in closed car in summer or winter conditions, will reduce the capacity and lifetime of
the battery. A device with hot or cold battery may not work for a while after being exposed to
extreme temperature differences even when the battery is fully charged. Battery performance
is particularly limited in temperatures well below freezing. Do not charge in humid
environment.
Care and Maintenance
– Do not expose the device to liquid, moisture or humidity as it is not waterproof.
– Do not use or store the device in dusty, dirty areas. Its moving parts and electronic
components can be damaged.
– Do not store the device in hot areas. High temperatures can shorten the life of electronic
devices, damage batteries, and warp or melt certain plastics.
– Do not store the device in cold areas. When the device returns to its normal temperature,
moisture can form inside the device and damage electronic circuit boards.
– Do not drop, knock, or shake the device. Rough handling can break internal circuit boards
and fine mechanics.
– Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the device.
– Use a soft, clean, dry cloth to clean any lenses.
– Do not expose your device to contact with sharp objects as this will cause scratches and
damage.
– Do not stick anything inside the device as this may damage internal components.
BHS-306_Headset_UG_wNordic2.fm Page 12 Friday, October 13, 2006 10:57 AM