Widex M-DEX User manual

User instrUctions
M‑DEX

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.............................
PaCkage Contents
M-DEX
User instructions
Lanyard
Charger
Jack-to-jack cable
2 3

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.
Not for general waste
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 5

m‑DeX oVeRVIeW
 Onoff
 Yes(green)
 No(red)
 Volumeup
 Volumedown
 Previous
 Next
 Menu
 RoomOff
 FreeFocus
 Microphone
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 care fully 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.











6 7

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 metre
With mobile phones, Bluetooth and
transmitted audio input, incl. M-DEX T
up to 50 cm
From the M-DEX to mobile phone
up to 10 metres
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)
8 9

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 provid-
ed, as illustrated.
WARNING
The breakaway buckle of the lanyard must be positioned at the
back of your neck (1), to make it easier to unsnap.
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.
1.
10 11

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.
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.
12 13

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.
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.
14 15

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 45.
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).
16 17

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.
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.
18 19

To adjust the volume of your two hearing aids separate-
ly, see “Advanced functions”.
CHOOSING LISTENING FOCUS
The FreeFocus feature allows you to focus on sound
from a specific direction with your hearing aids.
Press the FreeFocus key
The FreeFocus key lights up to indicate that FreeFocus
is activated.
To focus on sound
from the front
Press  ➞ Menu
To focus on sound
from behind
Press  ➞ Menu
To focus on sound
from the right
Press  ➞ Menu
To focus on sound
from the left
Press  ➞ Menu
When you choose a setting and lock it by pressing
Menu, a check mark confirms your choice. You can “un-
lock” your choice by pressing Menu again.
20 21

To adjust the volume in FreeFocus
First, choose the direction of focus and lock the setting.
Then use the same procedure as for the hearing aids’
listening programs.
To deactivate FreeFocus
Press the FreeFocus key
ROOM OFF
Activating ‘Room Off’ turns the hearing aid micro-
phones off. This allows you to use the feature to listen
directly to transmitted audio sound without interfer-
ence from surrounding sounds, or as a mute function
with your normal listening programs (e.g. Master).
To activate Room Off
Press the Room Off key.
The Room Off key lights up and the Room Off icon is
displayed.
To deactivate Room Off
Press the Room Off key again
22 23

basIC funCtIons – mobIle Phone
PAIRING THE M-DEX WITH YOUR MOBILE PHONE
When you use the M-DEX with your mobile phone for
the first time, you will need to pair the two devices.
1. Turn on Bluetooth on your mobile phone.
2. Turn on Bluetooth on your M-DEX. To to this:
2a. Press the Menu key from any program screen.
This screen is displayed.
2b. Press  or  until you reach Settings.
Press Menu ➞ Menu.
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4. When the M-DEX is found on the mobile phone, pair
the two devices. To do this:
4a. Press  or  to go to pairing
4b. Press the Menu key
4c. Press the Menu key again to start pairing. You
can follow the progress on the screen.
5. Select the M-DEX on your phone, and enter the pin
code (0000) displayed on your M-DEX into your
phone, if prompted.
The devices are now paired.
If no device can be detected, “Device not found. Try
again?” will be displayed on your M-DEX.
If Bluetooth is not already turned on, this screen will be
displayed.
2c. Press the Menu key to turn on BT. This screen is
displayed.
3. On your mobile phone, search for new devices. Refer
to the user instructions for your phone to see how to
do this.
26 27

NOTE
The next time you want to use M-DEX with your mobile phone,
make sure that Bluetooth is turned on in both units. Please note
that using the devices with Bluetooth turned on will significant-
ly increase their battery consumption.
MOBILE PHONE CONVERSATIONS VIA THE M-DEX
Hold the M-DEX as you would hold a phone and speak
into the microphone. The sound will be heard in both
hearing aids. The mobile phone must be within range
(up to 10 m).
When connected to your mobile phone, the M-DEX
gives access to the following functions:
1. Accept or reject call
2. End call
3. Transfer call
4. Make a call
5. Hands-free operation
ACCEPT OR REJECT CALL
When you receive a call, you will hear your mobile
phone ringing, and if the M-DEX is within range of your
hearing aids, you will also hear a tone in these. You can
choose to accept or reject the call by selecting “Yes” or
“No”.
Mobile phone
M-DEX
28 29

END CALL
To end a call
Press End
MAKING A CALL
To make an outgoing call
Dial the telephone number on your mobile phone and
use the M-DEX as described on page 28.
USING THE CALL LOG TO MAKE A CALL
To make a call to one of the last five numbers registered
in the Call log:
Press the Yes key
Use the  or  key to
choose the desired
number.
Press the Yes key.
Arrows indicate whether it is an incoming or outgoing
call.
To leave Call log:
Press the No key.
TRANSFER CALL
The transfer function allows you to transfer the call
back to the mobile phone.
To transfer a call to the
mobile
Press Transfer ➞ Yes
A check mark confirms
your choice.
Turning off your M-DEX will also transfer the call back
to the mobile phone.
30 31

HANDS-FREE OPERATION
For hands-free operation, wear the M-DEX around your
neck and speak into its microphone.
otheR funCtIons
ADJUSTING THE VOLUME
You can adjust the volume during a telephone conver-
sation.
To access the volume bars
Press  or 
To increase or decrease the volume
Press  or 
ROOM OFF
You can also use the Room Off function during phone
conversations. See page 23.
Max 30 cm
32 33

aDVanCeD funCtIons
The following advanced functions can be accessed by
pressing the Menu key once and using  or :
If you use , the menu items are placed in the following
order
1. Bluetooth *
2. Audio Input *
3. L/R volume
4. M-DEX T *
5. Settings
Choices made in options 1, 2 and 5 will be confirmed by
a check mark.
Because items 1, 2 and 4 involve transmitted sound, the
sound in your hearing aids will be affected every time
you confirm a choice in these options. When you leave
these functions, you will return to program 1.
* The M-DEX must be within a range of 50 cm of the hearing aids.
BLUETOOTH
The Bluetooth menu is
only available (indicated
by a blue colour) if
Bluetooth is activated in
your M-DEX and this is
connected to a Bluetooth
unit. Otherwise it will be
greyed out.
Note
When using the M-DEX for
Bluetooth transmission, it
must be within range of the
hearing aids (up to 50 cm).
34 35

To start transmission:
Press the Menu key. On some personal audio devices,
e.g. telephones, the music player may need to be acti-
vated before it can play music. In the default Bluetooth
setting, the hearing aid emphasises Music. To optimise
it for Speech instead, use  or .
To confirm a new setting
Press Menu key
To leave Bluetooth
Press No ➞ No
AUDIO INPUT
This function may be useful if you wish to listen to an
external audio source such as an mp3 player. When you
connect a jack plug to the audio input, the Audio input
screen will automatically be displayed.
The Audio input menu is only available (indicated by a
blue colour) if the M-DEX and the audio source are con-
nected by a jack-to-jack cable.
Note
When using the M-DEX for au-
dio input, it must be within
range of the hearing aids (up
to 50 cm).
36 37

To start transmission:
Press Menu. In the default Audio input setting, the hear-
ing aid is optimised for Music. To optimise it for Speech
instead, use  or .
To confirm a new setting
Press the Menu key
To leave Audio Input
Press No ➞ No
L/R VOLUME
This function is used if you wish to adjust the volume of
your two hearing aids separately.
Press the Menu key
To select which hearing
aid to adjust the volume
for
Use  or  to choose left
or right, respectively.
38 39