User's Manual

BT-501.
Car Kit
The fully charged battery has power for to
8 hours of talktime, up to hours of 120
standbtime. However, the times may vary
when used with different mobile phones or
other compatible Bluetooth devices, usag
settings, usage styles, and environments.
Leaving the device in hot or cold places,
such as in a closed car in summer or
winter conditions, will reduce the capacity
and lifetime of the battery. Always try to
keep the battery between 15 C and 25 C
(59 F and 77 F). A device with hot or cold
battery may not work temporarily, even
when the battery is fully charged. Battery
performance is particularly limited in
temperatures well below freezing.
Car Kit
Do not use the device during charging.