Additional information
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The AC power adapter is designed for indoor use only, and must not be used outdoors.
If the plug will not fit into the outlet, asking help from a qualified electrician. Improper connection
can result in risk of electric shock.
Emergency calls
IMPORTANT!
You should never rely solely upon any electronic device for essential communications (e.g. 911 calls).
Keep in mind that when making or receiving a call, your headset and the electronic device connected
to must be switched on and in a service area with adequate cellular signal strength. Emergency calls
can sometimes be disturbed on certain cellular phone networks or when certain network services
and/or phone features are in use. Check with your local cellular service provider.
Battery information
The rechargeable battery of your headset is not fully charged when it is new. For first time,
please charge for 4 hours before using.
When the rechargeable battery of your headset is low, there will be one battery low tone and the
red indicator quickly flash twice every 5 seconds to alert the user.
The rechargeable battery of your headset has a long service life if treated properly.
One new battery, or one that has not been used for a long period of time, could have reduced
capacity the first few times it is used.
Use your headset in room temperature for maximum battery capacity.
Do not expose your headset in an environment temperature above +55
(+131
). If your
headset is operated in cold temperatures, the battery capacity is reduced.
The battery can only be charged in temperatures b10
( (+55
) and +45
( (+113
)