Plantronics Blackwire C720M - Manual (Page 7)

7
Inline controls
Mobile talk button Can be used to answer or end a call directly from the headset with a
single press. The LED will rapid flash blue when a call is coming in and
slow flash blue when on a call. Can be used to manually turn on or off
the Bluetooth radio with very long press; Bluetooth status will stay in
last known state.
PC talk button Can be used to answer or end a call directly from the headset with a
single press. The LED will rapid flash green when a call is coming in and
slow flash green when on a call. Can also be used to put a caller on hold
with medium press.
Volume Volume up and down are available by pushing the bar up and down.
Mute A single press of the mute button will mute the microphone and the
LED will be red. Pressing this button again will take the microphone off
mute.
CAUTION For your safety, do not use the headset at high volumes for extended periods
of time. Doing so can cause hearing loss. Always listen at moderate levels. For more
information on headsets and hearing visit:
plantronics.com/healthandsafety .
Using your headset