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Headset Controls and Indicators
Action Indicator Light Tone
Make a call Enter the number on your
phone and press send.
Blue flash every 2 seconds until
the call is ended.
Ringing
Battery level To check, simultaneously
press and hold both the
Call Control and Volume
buttons for about 2
seconds. The indicator
light flashes to show the
charge level.
Red flashes Battery level
1 More than 2/3 full
2 1/3 - 2/3 full
3 Less than 1/3 full
None when
checking level.
Low battery tone
indication: 3 tones
when under 5
minutes talk time
is remaining.
Adjust the volume
(during call)
Tap the Volume button to
increase through 4 levels;
tap at top level to return to
lowest volume setting.
Single blue flash for every
volume level change.
Low tone at every
volume level
change. (Two
tones at maximum
volume level.)
WARNING Do not use headsets at high volumes for an extended period of time. Doing so can cause
hearing loss. Always listen at moderate levels. See www.plantronics.com/healthandsafety for more
information on headsets and hearing.