Widex M-DEX User manual

USER INSTRUCTIONS
M-DEX

PACKAGE CONTENTS
M-DEX
User instructions
Lanyard
Charger
Jack-to-jack cable
2

CONTENTS
SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
YOURNEWM-DEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
INTENDEDUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
DESCRIPTIONOFDEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
M-DEXOVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
STATUSICONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
BATTERYSTATUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
BLUETOOTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
ROOMOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
OPERATINGRANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
LANYARDUSAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
GETTINGSTARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
CHARGINGTHEBATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
TURNINGONTHEM-DEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
TURNINGOFFTHEM-DEX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
STANDBYSCREEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
MANUALKEYLOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
BASICFUNCTIONS–REMOTECONTROL . . . . . . . . . . . . . . . . . 
CHANGINGPROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
ADJUSTINGTHEVOLUME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
CHOOSINGLISTENINGFOCUS . . . . . . . . . . . . . . . . . . . . . . . . . 
ROOMOFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
BASICFUNCTIONS–MOBILEPHONE . . . . . . . . . . . . . . . . . . . . 
PAIRINGTHEM-DEXWITHYOURMOBILEPHONE . . . . . . . 
MOBILEPHONECONVERSATIONSVIATHEM-DEX . . . . . . 
ACCEPTORREJECTCALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
ENDCALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
MAKINGACALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
USINGTHECALLLOGTOMAKEACALL . . . . . . . . . . . . . . . . 
TRANSFERCALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
HANDS-FREEOPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
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OTHERFUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
ADJUSTINGTHEVOLUME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
ROOMOFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
ADVANCEDFUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
BLUETOOTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
AUDIOINPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
LRVOLUME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
M-DEXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
SETTINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
INCASEOFMALFUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 
CARINGFORYOURM-DEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
WARNINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
SAFETYWARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
REGULATORYINFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 
4

SYMBOLS
The following symbols will be used throughout the
manual:
WARNING
Messages with this heading indicate adverse reactions,
potential safety hazards or inadequate device perform-
ance.
CAUTION
Messages with this heading indicate/include informa-
tion regarding any special care to be exercised.
Non-ionizing radiation.
Not for general waste.
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YOUR NEW M-DEX
Your M-DEX is part of the DEX™ family of assistive lis-
tening devices. These user instructions explain how the
M-DEX should be operated.
WARNING
This booklet contains important information and instructions.
Please read this booklet carefully before you start using the de-
vice.
INTENDED USE
The M-DEX is a wireless device intended for mobile
phone applications, as well as an advanced remote con-
trol.
DESCRIPTION OF DEVICE
M-DEX is an advanced hearing aid remote control.
M-DEX reproduces mobile phone conversations direct-
ly in the hearing aid and allows the user to control nor-
mal mobile phone functions and listen to audio input,
using a Bluetooth connection for compatibility with
most models of mobile phone, and WidexLink for con-
nection to Widex hearing aids.
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M-DEX OVERVIEW
 Onoff
 Yes(green)
 No(red)
 Volumeup
 Volumedown
 Previous
 Next
 Menu
 RoomOff
 FreeFocus
 Microphone











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STATUS ICONS
When the M-DEX is turned on, you can see the battery,
Bluetooth and Room Off status in the upper right cor-
ner of the start screen.
BATTERY STATUS
Full Low
BLUETOOTH
(blue=connected, grey=on (but not connected),
iconnot visible=off)
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ROOM OFF
(Icon shown only if feature is active).
OPERATING RANGES
From the M-DEX to the hearing aids
When using it as a remote control up to 1 meter/3 feet
With mobile phones, Bluetooth and
transmitted audio input, incl. M-DEX T
up to 50 cm/1½ feet
From the M-DEX to mobile phone
up to 10 meters/
30 feet
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LANYARD USAGE
If you wish to wear the M-DEX
around your neck, place it in the
plastic holder at the end of the
lanyard provided, as illustrated.
10

1.
WARNING
The breakaway buckle of the lanyard must be positioned at the
back of your neck (1), to make it easier to unsnap.
CAUTION: FOR PACEMAKER USERS
(Risks) The use of the CLEAR/DEX should not interfere with
other devices such as a pacemaker. However, to be extra
cautious, Widex follows the guidelines recommended by the
manufacturers of implantable defibrillators and pacemakers for
their patients when using mobile phones. Specifically, hearing
aid wearers who also use a pacemaker should
• Keep the hearing aids at a distance of at least 15 cm/½ foot
away from the pacemaker and
• Do not carry the hearing aids (and/or any of the DEX accesso-
ries) in a shirt pocket or close to the chest.
• If any interference is observed, do not use the hearing aids
(and/or DEX) and contact your pacemaker manufacturer and
hearing healthcare professional immediately.
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GETTING STARTED
CHARGING THE BATTERY
The M-DEX uses a rechargeable battery. When fully
charged, the battery has a capacity of approx. 5 hours
of continuous use (when on standby, the battery will
last approximately three days. If Bluetooth is turned on,
this period will be considerably reduced). The charger
is available in four country versions. The version you
have may therefore not look exactly as illustrated in this
booklet.
To charge the battery
1. Connect the charger to the M-DEX.
2. Plug the charger into a wall socket.
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It takes approximately 6 hours to charge the battery
the first time. Allow the battery to charge for the full six
hours, even if the “battery full” icon appears.
Recharging takes approx. 3 hours, depending on
whether the device is turned on or off.
WARNING
Do not attempt to change the battery yourself. Contact your
hearing care professional if the battery needs replacement.
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TURNING ON THE M-DEX
Push the slide button on the right side upwards.
Note
The icons and screens in your M-DEX will depend on how it has
been configured by the hearing care professional in coopera-
tion with you. Your dispenser will have matched the M-DEX with
your hearing aids. Once this is done, you will be able to change
programs and adjust the volume in your hearing aids.
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The program in position number 1 (usually Master) is
displayed.
TURNING OFF THE M-DEX
To turn the M-DEX off
Push the slide button on
the right side of the M-DEX
downward.
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STANDBY SCREEN
To save power, the M-DEX screen will automatically
enter standby mode when it has not been used for 10
seconds.
To leave standby mode
Use any key except the on/off button. If the other keys
are locked, you can use the “No” key to leave standby
mode.
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MANUAL KEYLOCK
You can activate the keylock from any program screen.
To activate the keylock
Press No ➞ Menu
To deactivate the keylock
Press No ➞Menu
For information on automatic keylock, see page 49.
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BASIC FUNCTIONS
–REMOTECONTROL
From the start screen you can change programs in your
hearing aid, adjust the volume, choose listening focus
and activate/deactivate Room Off.
Except when using the Room Off function, your hearing
aids will produce speech messages or tones when you
change settings, unless the function has been deacti-
vated by your hearing care professional.
If a check mark is displayed, it means that the specific
function has been activated.
CHANGING PROGRAM
The selection of listening programs in your M-DEX de-
pends on how many and which programs you have cho-
sen to have in your hearing aid. The order of the pro-
grams is the same as in your hearing aid.
The M-DEX always starts up in the program which has
been chosen as program number 1 by you and your
hearing care professional (usually the Master program).
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To navigate through the
available programs
Press or 
Every time you press one of the arrows, an icon repre-
senting the active program is displayed.
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ADJUSTING THE VOLUME
To access the volume bars
Press or 
To increase or decrease
the volume in both
hearing aids
Press or 
The volume adjustment will apply only to the listening
program that is currently active.
The wider bar in the middle indicates the default set-
ting. The icon displayed reflects the number of volume
adjustment steps chosen by your hearing care profes-
sional in consultation with you.
The binaural volume adjustment closes automatically
after a few seconds. To close it manually, press the No
key.
Changing to another program or turning the M-DEX off
will cancel any volume adjustment.
If you adjust the volume on the hearing aid’s volume
control, this adjustment will not be copied into the
M-DEX.
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