Ingeniously Simple
Plantronics Discovery® 975
User Guide
Welcome
Thank you for purchasing the Plantronics
Discovery® 975 earpiece. This guide
contains instructions for setting up and using
your new earpiece.
Before using this product, please refer
to the For Your Safety guide for important
product safety and charging information.
ii
Getting Assistance
The Plantronics Technical Assistance Center
is ready to assist you. Visit www.plantronics.
com/support or call 1-866-363-BLUE
(2583).
Registering Your Product
Visit www.plantronics.com/
productregistration to register your product
online so we can provide you with the best
service and technical support.
Contents
Earpiece Features and Accessories ...........................................iv
Charging Your Earpiece .............................................................. 2
Recharging Your Charging Case ................................................ 6
Pairing Your Earpiece ................................................................. 7
Using More Than One Bluetooth Phone .................................... 8
Adjusting the Fit ......................................................................... 9
Earpiece Controls and Indicators ............................................. 10
Hands-Free Features ................................................................ 13
Range ....................................................................................... 13
Troubleshooting ........................................................................ 14
Product Specifications ............................................................. 15
Limited Warranty ...................................................................... 16
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iii
Earpiece Features and Accessories
Charging Jack
Call Control Button:
Call answer/end/
reject/redial
Power on/off
Pairing to phone
Transfer call
to/from phone
Reconnect when
back in range
Volume Control Button:
Volume up/down
Mute on/off
Online indicator on/off
Eartip
Vents and screens
for microphones
iv
Earpiece Features and Accessories
To order accessories, please contact your Plantronics supplier or go to www.plantronics.com.
Mobile Charging Kit:
Vehicle Power Charger and
USB Charger
#81291-01
USB Lanyard
#74948-01
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1
Charging Your Earpiece
CHARGING TIME
1.5 hours ...... Full charge using
30 minutes.... Minimum charge
Option A
AC or case
before first use
1
Your new earpiece performs best when fully
charged. While your earpiece is charging, the
indicator light slowly flashes red. When your
earpiece is fully charged, the indicator light turns off.
This applies to all charging options.
Never charge the battery where the temperature
may fall below 0°C (32°F) or rise above 40°C
(104°F). Do not use your earpiece while it is
connected to the charger.
Option A: Using the AC Charger
1 Plug the AC charger into a power outlet.
2
2 Connect the AC charger to the charging
jack on the earpiece.
2
Charging Your Earpiece
Option B: Using the Charging Case
1 Open the cover of the case. Align the
charging jack on the earpiece with the
micro USB connection in the case.
2 Gently push the earpiece onto the micro
USB connection until you feel it click into
place.
3 Once charged, gently press the ejection
button with your thumb to release the
earpiece.
Option B
1
2
Insert
Eject
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3
Charging Your Earpiece
Option A
Checking the Battery Level of Your Earpiece
Option A: The LCD display on the charging
case will indicate battery level of the earpiece
when earpiece is inserted into case.
NOTE The Bluetooth icon on the case indicates
the earpiece is connected to your phone. You can
receive calls when charging.
Volume Button
Call Control Button
Option B: With the earpiece powered on,
simultaneously press and hold the call control
button and the volume button for about 2
seconds. The indicator light flashes red to show
the charge level.
Option B
4
Charging Your Earpiece
OPTION A
Bars Battery Level
3 Full battery
2 1/3 to 2/3 full
1 Less than 1/3 full
OPTION B
Red Flashes Battery Level
S
S S
S S S
More than 2/3 full
1/3 to 2/3 full
Less than 1/3 full
Automatic Battery Status Alerts
When the battery charge is very low, a tone and
voice prompt in English will automatically occur.
LOW BATTERY WARNINGS
Battery Level Tone Voice Prompt
30 minutes of
talk time remaining
(this alert only
occurs during
an active call)
10 minutes
of talk time
remaining
Double high
tone every
15 minutes
Triple high
tone every
30 seconds
“Battery Low”
repeats every
30 minutes
“Recharge
Battery” repeats
every 3 minutes
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5
Recharging Your Charging Case
1
2
CHARGING TIME
1.5 hours ..... Full charge
using AC
Recharging the Battery Inside the Case
The charging case provides two full charges to
your earpiece before the battery within the case
requires recharging.
1 To check the battery status of the case,
refer to the LCD display.
If the battery icon is flashing, or the display is
blank, you have to recharge the case before
you can use it to charge your earpiece.
2 Plug the AC charger to power source
before connecting to the charging jack on
the side of the case.
While the case is recharging, the LCD battery
icon (above the case image) flashes to indicate
charge level.
6
Pairing Your Earpiece
SETTINGS
SETTINGS
Time an d Date
Phone Settings
Bluetoo th
Sound S ettin gs
Network Services
Security
Reset S ettin gs
SETTINGS
SETTINGS
Time and Date
Phone Settings
Bluetoot h
Sound Settings
Network Services
Security
Reset Settings
SETTINGS
SETTINGS
Time and Date
Phone Settings
9xxPla ntronics
Sound Settings
Network Services
Security
Reset Settings
SETTINGS
SETTINGS
Time and Date
Phone Settings
0000
Sound Settings
Network Services
Security
Reset Settings
How to Pair Your Phone with Your Earpiece
for the First Time
1
Turn on the Bluetooth feature on your phone.
2 Turn the earpiece on.
Press and hold the call control button until the
indicator flashes red/white.
3 Use the commands on your phone to
locate and select your earpiece.
9xxPlantronics.
4 If prompted for the PIN code or Passkey,
enter 0000.
Pairing is successful when the indicator on
your earpiece flashes white.
NOTE If your phone supports Secure Simple
Pairing (SSP), you will not need to enter a PIN
code or Passkey.
1
2
3
4
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7
Using More Than One Bluetooth Phone
Plantronics Discovery 975 supports multipoint
technology, which allows you to use one earpiece
with two different Bluetooth mobile phones.
How to Turn the Multipoint Feature On and Off
To use more than one phone, you must turn the
multipoint feature on. When this feature is off, your
earpiece can connect to only one Bluetooth phone.
1 With your earpiece turned off, press and
hold the volume and call control buttons
simultaneously until earpiece turns on
and indicator flashes white 2 times.
2 To pair earpiece to a second phone, see
“Pairing Your Earpiece” on page 7.
NOTE To turn the multipoint feature off, repeat
step 1. The indicator flashes white 1 time to
indicate multipoint is off.
8
How to Initiate a Call
The earpiece initiates or redials a call on the phone
that most recently made an outgoing call. To use the
second phone, initiate the call using the controls on
the second phone.
How to Answer a Call While Talking on the
Other Phone
To answer the second call, the first call must be
terminated or placed on hold using the phone, if
your phone has a hold feature.
1
Tap the call control button once to hang up
the existing call.
2 Tap the call control button again to
answer the new call from the other phone.
Adjusting the Fit
For optimal voice clarity, point the boom towards
the corner of your mouth. The eartip can also
be rotated on speaker housing to better fit the
contours of your ear. If the earpiece still feels
unstable, then change the eartip to a different size.
Incorrect Fit
1
2
Correct Fit
Stabilizer loop
Speaker housing
How to Install a Different Gel Eartip
1 To remove the eartip, gently pull the
stabilizer loop of eartip off of the speaker
housing.
2 To fit a new eartip, position the eartip over
the speaker housing and gently press
down on the eartip.
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9
Earpiece Controls and Indicators
Action Light Tone
Turn on the
earpiece
Turn off the
earpiece
Answer a call Tap the call control button once. Flashes white. Single low tone followed by
Reject a call and
send caller to
voice mail
End a call Tap the call control button once. 1 white flash. 1 low tone.
Make a call Enter the phone number on your
Transfer a call
between earpiece
and phone
10
DURATION: TAP is under 1 second. PRESS is 1-4 seconds as directed.
Press the call control button
for 2 seconds.
Press the call control button
for 4 seconds.
NOTE
Wait until you hear the ring in your earpiece to answer the call.
Press the call control button
for 2 seconds.
phone and press send. The call
automatically transfers to your
paired and connected earpiece.
While on a call, press the call
control button for 2 seconds.
Glows white. 4 ascending tones.
Glows red. 4 descending tones.
None 1 low tone.
None Single low tone followed by
None Single low tone followed by
low-low-high tones.
low-low-high tones.
double low tone.
Earpiece Controls and Indicators
Action Light Tone
Enabling or
disabling mute
(during an active
call)
Adjust the
volume (during an
active call)
WARNING Do not use the earpiece 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 earpieces and hearing.
Press volume button
for 2 seconds.
Tap the volume button once for
each volume increment. After
reaching max volume, tapping again
will drop the volume to the lowest
setting.
None Mute on: sequence starts with the
One white flash for
every volume level
change.
low-high tones plus voice prompt
“Mute On” (in English). 15 minutes
later just the low-high tones advise
status. Full sequence repeats
every 30 minutes until Mute is
de-activated.
Mute off: high-low tones followed
by voice prompt “Mute Off” (in
English).
One low tone for each volume
increment change; 2 low tones at
maximum volume.
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DURATION: TAP is under 1 second. PRESS is 1-4 seconds as directed.
11
Earpiece Controls and Indicators
Action Light Tone
Check if earpiece
is powered on
Incoming call None 3 white flashes
Call in progress None 1 white flash every
Missed call None 3 pink flashes
Turn the online
indicator on or off
12
DURATION: TAP is under 1 second. PRESS is 1-4 seconds as directed.
Tap any button. 1 white flash. 1 tone.
every 2 seconds.
NOTE If your headset is docked with the charging case, the headset icon (bottom left) and
the display backlight on the case will flash when you have an incoming call. Remove the
earpiece from the case to answer the call.
2 seconds.
every 10 seconds
for 5 minutes.
While the earpiece is powered on,
press and hold the volume button
for 4 seconds.
Turning on: White
light brightens
over 2 seconds.
Turning off: White
light dims over 2
seconds.
3 rapid low tones every
2 seconds.
None
None
Single low tone.
Hands-Free Features Range
If your phone and your wireless service provider
both support hands-free operation, you can use
the following features:
Redial the last
number you
called
Voice
activated
dialing
Double-tap the call control
button. You will hear two low
tones.
When the earpiece is powered
on, press and hold the call
control button for 2 seconds. You
will hear a short tone, a pause,
followed by another short tone.
To maintain a connection, keep your earpiece
within 33 feet (10 meters) of the Bluetooth phone.
Outside
Bluetooth range
To manually
reconnect after
60 seconds
outside range
“Lost connection” voice prompt
(in English) followed by a single
high tone.
Tap call control button to
hear single low tone indicating
successful connection.
NOTE Audio quality is also dependent upon the
device with which the earpiece is paired.
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13
Troubleshooting
My earpiece
does not work
with my phone.
My phone did not
locate the earpiece.
I cannot hear
caller/dial tone.
Callers cannot
hear me.
14
Make sure the earpiece is fully charged.
Make sure you are trying to pair to a Bluetooth enabled phone.
Turn both your phone and earpiece off and on, and then repeat the pairing process on
page 7.
The earpiece is not turned on. Press the call control button for approximately 2 seconds
until you hear a tone or see the indicator glow white.
Your earpiece is out of range. Move the earpiece closer to the Bluetooth phone. See
“Range” on page 13.
Your earpiece battery is drained. Charge your battery. See “Charging Your Earpiece” on page 4.
The listening volume is too low. Incremental tapping of the volume button will adjust
volume. See instructions for adjusting the volume in “Earpiece Controls” on page 11.
Your earpiece is out of range. Move the earpiece closer to the Bluetooth phone. See
“Range” on page 13.
Check that you have not activated the Mute feature. See “Earpiece Controls” on page 11.
Product Specifications
Talk Time* Battery enables up to 5 hours
Standby Time* Battery enables up to 7 days with multipoint feature OFF
Earpiece Weight 8 grams
Battery Type Earpiece: Lithium ion polymer
Storage/Usage
Temperature
Bluetooth Version 2.1 + EDR (Enhanced Data Rate) + eSCO + Secure Simple Pairing (SSP) for pairing
Bluetooth Profiles Headset Profile (HSP) for talking on the phone
* Performance may vary by device.
Battery enables up to 4 days with multipoint feature ON
Charging Case: Lithium ion polymer
32-104ºF (0-40ºC)
earpiece without entering PIN code/Passkey
Hands-free Profile (HFP) for talking on the phone and operating the phone
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Limited Warranty
This warranty covers defects in materials and workmanship of products manufactured, sold or certified by
Plantronics which were purchased and used in the United States and Canada.
The warranty lasts for one year from the date of purchase of the products.
This warranty extends to you only if you are the end user with the original purchase receipt.
We will, at our option, repair or replace the products that do not conform to the warranty. We may use functionally
equivalent reconditioned/refurbished/remanufactured/pre-owned or new products or parts.
To obtain service in the U.S., contact Plantronics at 1-866-363-BLUE (2583). To obtain service in Canada call (800)
540-8363.
THIS IS PLANTRONICS’ COMPLETE WARRANTY FOR THE PRODUCTS.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
Please contact your dealer or our service center for the full details of our limited warranty, including items not
covered by this limited warranty.
16
Plantronics, Inc.
345 Encinal
Santa Cruz, CA 95060
United States
Tel: 800-544-4660
www.plantronics.com
©2009 Plantronics, Inc. All rights reserved. Plantronics, the logo design, and Plantronics Discovery are trademarks
or registered trademarks of Plantronics, Inc. The Bluetooth® word mark and logos are owned by the Bluetooth SIG,
Inc. and any use of such marks by Plantronics, Inc. is under license. All other trademarks are the property of their
respective owners.
Patents US 5,210,791; 5,712,453; Patents Pending
81616-01 (07/09)
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