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3
Plug into the AC Electrical Outlet
Charge by the Computer USB Port
USB port
Attention:
If the headset hasn’t been used for a long time, or the battery has been
exhausted, then the charge instructions will show after a few seconds.
The battery using life depends on many factors, such as the volume-level or
outside temperature for maintenance.
The built-in lithium-ion battery is original and it needs to be replaced by the
manufacturer or dealer.