Phonak Roger Pen User Manual page 18

You can also charge your Roger Pen by using the
charging cable to connect your Roger Pen to one of
your computer's USB ports.
If you connect the charging cable to your computer's
USB port and the docking station at the same time,
your Roger Pen will not charge.
Indicator lights (battery status)
Indicator light Meaning
Charging
Fully charged
Low battery – charge your Roger Pen.
In addition, you will hear beeps in your
hearing aids.
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