2. Computers & electronics
  3. Audio & home theatre
  4. Bluetooth music receivers
  5. Widex
  6. M-DEX

Widex M-DEX Users Instructions

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USER INSTRUCTIONS
M‑DEX
PACKAGE CONTENTS
M-DEX
User instructions
2
Lanyard
Charger
Jack-to-jack cable
3
SYMBOLS
DESCRIPTIONOFDEVICE.......................................
INTENDEDUSE ...............................................
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...........................................
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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 ....................................
OTHERFUNCTIONS............................................
ADJUSTINGTHEVOLUME.....................................
ROOMOFF ..................................................
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ADVANCEDFUNCTIONS .......................................
BLUETOOTH ................................................
AUDIOINPUT ................................................
LRVOLUME ................................................
M-DEXT ....................................................
SETTINGS ...................................................
RESET ......................................................
MAINTENANCE ...............................................
WARNINGS...................................................
SAFETYWARNING ............................................
INCASEOFMALFUNCTION ..................................
REGULATORYINFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SYMBOLS ...................................................
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DESCRIPTION OF DEVICE
 Onoff
 Yes(green)
 No(red)
 Volumeup
 Volumedown
 Previous
 Next
 Menu
 RoomOff
 FreeFocus
 Microphone
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

If you need help to identify the serial number (usually six or seven digits)
on the product, please contact your hearing care professional.
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WARNING
This booklet contains important information and instructions. Please
read this booklet care fully before you start using the device.
M-DEX is an advanced hearing aid remote control. M-DEX repro-
duces mobile phone conversations directly in the hearing aid and
allows the user to control normal mobile phone functions and lis-
ten to audio input, using a Bluetooth connection for compatibility
with most models of mobile phone, and WidexLink for connection
to Widex hearing aids.
INTENDED USE
The M-DEX is a wireless device intended for mobile phone
applications, as well as an advanced remote control.
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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 corner of the start screen.
BATTERY STATUS
Full Low
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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).
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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.
14
WARNING
The breakaway buckle of the lanyard must be positioned at the back of
your neck (1), to make it easier to unsnap.
15
WARNING
Interference with active Implants
• In order to show caution, we advise to follow the guidelines recom-
mended by manufacturers of defibrillators and pacemakers regard-
ing use of cell phones:
• If you wear an active implantable device keep the Wireless Hearing
Aids and Hearing Aid Accessories such as wireless remote controls or
communicators at least 15 cm/6 inches away from the implant.
• If you experience any interference, do not use the hearing aids and/
or hearing aid accessories and contact the manufacturer of the im-
plant. Please note that interference can also be caused by power
lines, electrostatic discharge, airport metal detectors etc.
• If you have an active brain implant, please contact the manufacturer
of the implant for risk evaluation.
If you have an implantable device, we advise to keep magnets* at least
15 cm/6 inches away from the implant. (*= can be specified as Auto-
phone magnet, hearing instrument case, magnet in a tool, etc.)
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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 Blue-
tooth 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.
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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. Contact your hearing care
professional.
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TURNING ON THE M-DEX
Push the slide button on the right side upwards.
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