Instructions for use
Oticon CROS
Model overview
This booklet is valid for Oticon CROS and covers both CROS and BiCROS.
CROS
BiCROS
Oticon CROS is to be used with a compatible Oticon hearing aid that has
either a single push button or a double push button for volume control.
Single push button
Double push button
For an overview of which hearing aids Oticon CROS is compatible with,
please go to www.oticon.com
Introduction to this booklet
Intended use
This booklet gives you guidance on how to use and maintain your new
transmitter. Please read the booklet carefully, including the Warnings
section. This will help you get the full benefit of your new transmitter.
Your hearing care professional has adjusted the transmitter to meet
your needs. If you have further questions, please contact your hearing
care professional.
About Start-up Handling Features Warnings More info
For your convenience, this booklet contains a navigation bar to help
you easily navigate through the different sections.
The transmitter is intended to transmit sound from the poorer ear to a
hearing aid placed on the better ear.
The transmitter is intended to be used by adults and children older than
36 months together with a hearing aid.
IMPORTANT NOTICE
For details on the functionality of the hearing aid, please refer to the hearing
aid’s Instruction for use.
Table of contents
About
Start-up
Handling
CROS solution 8
Your transmitter 10
Left/right identification 12
MultiTool for handling batteries and cleaning 13
Turn the transmitter ON and OFF 14
When to replace the battery 15
How to replace the battery (size 312) 16
Put on the transmitter 18
Caring for the transmitter 19
Replace the earpiece 20
ProWax miniFit filter 22
Change volume on the transmitter 23
Mute 26
Sound indicators 27
Warnings
General warnings 28
More info
Troubleshooting 36
Water & dust resistant (IP68) 38
Conditions of use 39
Warranty 40
Technical information 42
CROS solution
A CROS or BiCROS solution consists of a transmitter and a hearing aid.
The transmitter is placed on the poorer ear. It wirelessly sends sound
Sound transmission
from the poorer ear surroundings to the hearing aid placed on the better
ear. The transmitter only works with certain Oticon hearing aids.
CROS (Contralateral Routing of Signals) is a solution for people with
limited or no hearing in one ear combined with normal hearing in the
opposite ear.
BiCROS (Bilateral Contralateral Routing of Signals) is a solution for
people with limited or no hearing in one ear and hearing loss in the
opposite ear.
8 9
About Start-up Handling Warnings More info
Hearing aidTransmitter
Your transmitter
What it is and what it does
Microphones
Sound in
Push button
Change volume
and mute
Ear grip
Holds the dummy
speaker in place
(optional)
Wax filter
Wax protection
The dummy speaker has no
acoustic purpose. The choice of
size depends on what fits best in
your ear.
Dummy speakers
60 85
The dummy speaker uses an open
dome as shown below. This helps
the transmitter stay in your ear.
Earpiece
Open dome
Dummy speaker
No sound
Battery drawer
Nail grip
Open the
battery drawer
10 11
About Start-up Handling Warnings More info
Contains the battery
and functions as an
on/off switch
Dome sizes
6 mm5 mm* 8 mm 10 mm
* Only for dummy speaker 60
Please see details for replacing the dome in
section: Replace the earpiece.
Left/right identication
MultiTool for handling batteries and cleaning
It is important to distinguish between the transmitter and the hearing
aid. The left/right color indicator helps you distinguish between left and
right.
The MultiTool contains a magnet that makes it easier to replace the
battery in the transmitter. It also contains a brush and wire loop for
cleaning and removing earwax. If you need a new MultiTool, please
contact your hearing care professional.
On the transmitter, you can find left/right color indicators in the battery
drawer. On the dummy speaker it is located as shown.
Wire loopMagnet
RED indicates RIGHT
BLUE indicates LEFT
IMPORTANT NOTICE
The MultiTool has a built-in magnet. Keep the MultiTool at least 12 inches
away from credit cards and other magnetically sensitive devices.
12 13
About Start-up Handling Warnings More info
Brush
Turn the transmitter ON and OFF
When to replace the battery
The battery drawer is used to switch your transmitter on and off. To save
battery life, make sure the transmitter is switched off when you are not
wearing it. If you wish to return to the standard settings, simply open
When it is time to replace the battery in the transmitter, you will hear
three alternate high pitch tones in the hearing aid. They will be repeated
in moderate intervals until the battery runs out.
and close the battery drawer.
Three alternate tones
= The battery is running low
Four descending tones
= The battery has run out
Battery tip
Turn ON
Close the
battery
Turn OFF
Open the
battery drawer.
Keep a spare battery on you at all times to ensure your transmitter
always works.
drawer with
the battery
in place.
14 15
About Start-up Handling Warnings More info
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