User manual

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This headset is powered by rechargeable battery. The new battery can achieve
the best function only after two or three times fully charged and discharged cycles.
But it eventually will be invalid after being charged and discharged for hundreds of
times.You only can charge the battery with our designated headset charger.
Unplug the charger from the electrical plug and the device when you don’t use it. Do
not leave a fully charged battery to a charger, since overcharging may shorten its
lifetime. If left unused, a fully charged battery will loose its power over time.
Note: Please charge the battery every three months if you don’t use the headset for
a long time.
Use the battery only for its intended purpose. Never use any damaged charger or
battery!
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. Please always
try to keep the battery between 15 ºC and 25 ºC (59 ºF and 77 ºF). A Device with a
hot or cold battery may not work temporarily, even when the battery is fully charged.
The battery performance will be particularly limited when the temperature is below
freezing. Do not dispose the batteries into a fi re as they may explode. Batteries
may also explode if damaged. Dispose the battery according to the local regula-
tions. Please recycle the battery when possible. Do not dispose the battery as the
household waste.
4. Battery Information