User's Manual
Feature Summary
Battery Disposal & Recycling
End-of-life Battery Disposal Instructions
This device uses a Lithium-ion battery that should last the lifetime of the device. If you suspect your battery
may be dead, try charging it. If the battery does not recharge, please follow instructions below for proper
disposal. The Logitech® Cordless Headset for PC and Mobile Phones does not have a user-
serviceable battery. Please do NOT attempt to change the battery. If the battery has died, you should
follow the disposal instructions below. Consult local laws and regulations for proper battery disposal in your
region. If there are no local regulations concerning battery disposal, please dispose of the device in a waste
bin for electronic devices.
Caution: The battery used in this device
may present a risk of re, explosion or
chemical burn if mistreated.
Do not expose battery to heat above 130° F (54°C),
or incinerate. Do not use or charge the batteries if
they appear to be leaking, discolored, deformed, or
in any way abnormal. Do not leave your batteries
discharged or unused for extended periods of time.
When batteries are misused, they may explode
or leak, causing burns and personal injury. If your
batteries leak, use normal precaution and discard the
batteries immediately.
Leaking batteries can cause skin burns or other personal injury. Do not dispose of batteries in a re.
Do not immerse batteries in water. Keep batteries out of reach of children.
Recycling Information for Lithium-ion Batteries.
Battery Removal (Destruction of headset will result).
1. Remove ear pad.
2. Use at screw driver to open headset as shown.
3. Disconnect battery connector from circuit board.
4. Do not place in trash. Dispose of battery according to
local battery recycling laws.
Mobile Phone Feature Summary
The Logitech® Cordless Headset supports call reject and other advanced features. See the Headset Operation
Summary Table below for a full summary of standard features supported.
Standard Features
How to What you do What you see What you hear
Turning On Headset Press Multi-Function Button (MFB) briey
5 BLUE LED Flashes, then slow BLUE
LED Flashes
Brief low-to-high-tone
Incoming Call Notication No action 3 repeating BLUE ashes Melody increases in volume
Answering Call Press MFB briey 3 repeating BLUE ashes Single beep when answered
Call in Progress No action 4 repeating BLUE ashes No beeps
Ending call Press MFB briey 3 repeating BLUE ashes Single beep
To Pair
From Off state, press and hold MFB button
for 10 seconds
Alternating BLUE/RED LED ashes,
BLUE ashing LED when paired
Single high-low tone beep
Standby or connected No action 1 or 3 repeating BLUE Flashes No audio
Voice Dialing Press MFB when in standby or connected 4 repeating BLUE ashes Single beep
MIC Mute-on
Press and hold Vol(+) and Vol(-) button
simultaneously for 3 seconds
4 repeating BLUE ashes Beep every 30 seconds
Ending MIC mute
Press and hold Vol(+) and Vol(-) button
simultaneously for 3 seconds
4 repeating BLUE ashes Single beep
Low Battery No action Slowly repeating RED ashes Beep every 30 seconds
Turning Off Press MFB for more than 3 seconds 5 brief RED ashes High-to-low tone
Charging Notication No action Continuous ORANGE LED -
Enter Night Mode Press all three buttons for 3 seconds Nothing 4 quick tones
Release Night Mode Press all three buttons for 3 seconds 4 BLUE LED ashes 4 quick tones
Handsfree Functions - supported by phones that have this feature
Last Number Redial Press Volume (-) for 3 or more seconds 4 repeating BLUE ashes A double Beep
Incoming Call Reject Press MFB for more than 3 seconds 4 repeating BLUE ashes A double Beep
These features are supported by phones that support Handsfree Mode
Note: MFB stands for Multi-Function Button; CDMA and GSM phones handle these functions differently. Please check with your service provider and
mobile phone vendor for details.