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Talk Time
With a single full charge, the headset will provide up to 9 hours of continual talk time. Talk time
will be reduced when operating in wideband mode and/or if the headset is used consistently at
a long distance from the base.
Low Battery Warning
If you are on a call and the headset battery is critically low, you will hear a repeated single low
tone every 15 seconds indicating that the battery is low. You should recharge the headset
immediately or swap out the low battery with a fully-charged battery.
If you are not on a call and press the call button, you will hear three low tones if the battery is
critically low. You should recharge the headset immediately or swap out the low battery with a
fully-charged battery.
Headset Battery Status
There are two ways to determine your headset battery status.
View System Tray Icon
With Plantronics software installed, a headset icon will appear in your system tray, displaying
battery status. A warning will be issued if your headset’s battery is critically low.
Use the Base
Wh
en the system is idle, short press the base subscription button once to get feedback on the
headset battery level. The computer, mobile and desk phone button LEDs will light up, indicating
your headset battery level.
Headset Battery
Level
Computer Button
LED on base
Mobile Button LED
on base
Desk Phone Button
LED on base
75–100%
50–75%
25–50%
0–25%
To mute/unmute a call, press the mute button.
When mute is activated, the base button will be solid red and you will hear three high tones
(you will still be able to hear the caller). These tones will repeat every 60 seconds while mute is
active. When unmuted, you will hear three low tones.
Fine-tune your headset volume by pressing the volume up (increase) or down (decrease)
button.
Headset Battery Level
Mute your Headset
During a Call
Adjust Your Headset
Vo
lume
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