Comfort Audio DG01T Digital Audio Transmitter User Manual 1

Comfort Audio Inc. Digital Audio Transmitter 1

Contents

User Manual 1

Comfort Digisystem User manual
Comfort Digisystem
Microphone
DM05
US / English
Microphone DM05 2
User manual
Table of contents Page
1) Introduction to the Comfort Digisystem 3
2) Regulatory information 3
3) Functions of the Microphone DM05 4
4) Included accessories 4
5) Getting started 5
6) Settings 5
7) Pair 6
8) More functions 6
9) Radio range and channels 7
10) Trouble shooting 7
11) Battery maintenance 7
12) Service and warranty 8
13) Technical data 8
14) Important safety instructions 9
Microphone DM05 3
1) Introduction to the Comfort Digisystem
Thank you for choosing Comfort Digisystem. The products are easy to use, whether you use a hearing aid or not.
Before using the product, please read this User manual carefully.
Using the Microphone DM05 transmitter, the signal is transferred digitally, resulting in an excellent clear sound.
The Comfort Digisystem products feature SecureStream Technology – a unique, patented digital technology
allowing eavesdrop-secure radio transfer in real time.
Presenting the Microphone DM05
The Microphone DM05 is the world’s smallest wireless microphone for the digital transfer of sound to earpieces. This
radio signal is encoded so that no one else can hear what is being said. The microphone is extremely discreet and can
be simply attached to clothes with a clip.
The Microphone DM05 is equipped with a voice AGC (Automatic Gain Control) to maintain a comfortable sound level at
all times. The DM05 is pre-programmed with 10 channels. Additional channels can be used in combination with other
Digisystem products.
2) Regulatory information
Comfort Digisystem products are not to be used as a substi-
tute to the hearing aids and should be used in accordance
with the specifications and recommendations provided by
your physician.
It is recommended that customers keep the volume control
in the lowest position, when turning on the device. If not, the
sound could potentially cause harm to the customers’ hear-
ing.
Comfort Audio is not liable for damages arising from usage
of the equipment not in accordance with the instructions
provided by Comfort Audio. Comfort Audio shall not be liable
for performance problems and/or damages caused in any
way by customer’s modification of any part of the equipment.
Federal Communications Commission Statement, This device
complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC ID: UOJ-DG01T
Industry Canada, This device complies with Industry Canada
licence-exempt RSS standard(s).
Operation is subject to the following two conditions:
(1) this device may not cause interference, and
2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
IC ID: 6769A-DG01T
ETL
Conforms to UL Standard for Safety for Audio, Video and
Similar electronic apparatus – Safety Requirements UL 60065,
Issue:2003/06/30 Ed:7 Rev:2007/12/11
Certified to CSA Standard for Safety for Audio, Video and
Similar electronic apparatus – Safety Requirements CAN/
CSA-C22.2 No. 60065:03, Issued 2003/04/01 Ed:1 Amendment
1:2006
Intertek ETL Control number: 4002355
WARNING!
Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to
operate the equipment.
NOTE:
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protec-
tion against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communi-
cations. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of
the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and
receiver.
-- Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
-- Consult the dealer or an experienced radio/TV
technician for help.
DANGER!
DO NOT USE the COMFORT DIGISYSTEM products if
you have a PACEMAKER or other implanted device.
The Comfort Digisystem products could cause the
pacemaker or other implanted device to malfunction
and cause serious injury or death.
Microphone DM05 4
3) Functions - Microphone DM05
Omnidirectional
microphone
On / Off
Charging socket
Function indicator Pairing button
Clips
Hole to secure neck pendant
4) Included accessories
• Charger A11
• Split cable
• Necklace clip on
For other accessories, please visit our website
www.comfortaudio.us
Microphone DM05 5
5) Getting started
Charging
The Microphone DM05 is chargeable. Charge the DM05
at least two hours before using it the first time. An
empty battery is fully charged within two hours.
During charging, the function indicator shows red. Once
the function indicator shows green, the unit is fully
charged and switches to automatic float charging. The
unit is automatically switched off when charging.
INPUT 5V 220mA
Connecting a charger
to the Microphone DM05
Please note:
Only use the charger supplied by Comfort Audio.
Changing the battery without the assistance of an
authorized dealer will void the Limited Warranty.
First time use
Switch on the transmitter by pressing the On/Off button
for around two seconds. Function indicator ON.
The Microphone DM05 is a
microphone for closer range.
It works best within approx.
12 inches (30 cm).
Attach the DM05 to your clothes
using the clip. The DM05 is
supplied with a neck pendant,
which can be connected to the
unit to make sure that you do
not drop it.
WARNING!
The necklace should not be used if there is a risk of
getting stuck, e.g. in a machine or other objects.
6) Settings
As the DM05 does not have a display/menu, the unit's
functions are controlled by means of the pairing button.
The current function is displayed by the function indica-
tor.
In addition to the pairing functions (see section
Pairing
),
there is also the facility to activate three modes.
To do this, press the pairing button and hold it down
immediately after starting up the unit (within two
seconds).
A selected mode can always be cancelled by switching
off the DM05 and starting it up again.
Change channel
When the pairing button is held down for five seconds,
the function indicator shows a constant green light.
If you release the pairing button when the function indi-
cator is green, the
Change channel
mode is activated.
Press the pairing button briefly the number of times
corresponding to the desired channel (1-10), see section
Radio Range and Channels
.
After a pause of two seconds, the entry process ends
and the selected channel is shown by the same number
of green flashes in the function indicator.
Change code
If the pairing button is instead held down for ten sec-
onds, the function indicator will switch to a red light.
If you release the pairing button when the function indi-
cator is red,
Change code
mode is activated.
Press the pairing button twice in quick succession to
generate a random code, and at the same time the pair-
ing information is transmitted (make sure that other
Digisystem units to be paired are activated to receive
pairing information).
Five red flashes in the function indicator confirm that
the pairing information (channel and code) has been
sent.
Change
channel
Change
code
Factory
reset
0 sec 5 sec 10 sec 15 sec 20 sec
Microphone DM05 6
Factory reset
If the pairing button is instead held down for 20 seconds,
the function indicator will switch to an alternating red
and green light. The
Factory reset
mode is now acti-
vated.
To perform a factory reset, press the pairing button once
quickly. The function indicator flashes the number of
times corresponding to the channel, see section
Radio
Range and Channels.
The channel and code are now reset to the factory set-
tings.
7) Pair
Microphone DM05 must be paired using the pairing but-
ton, see section
Pairing (via pairing button)
.
Pairing
To use a receiver and transmitter together, they must be
paired. All transmitters and receivers are default paired
at the factory and will work together.
NB! To prevent eavesdropping, a new code key must be
generated and transmitted between the units by pairing.
Transmitting/receiving of pairing information along with
a new code can be performed from any Comfort Digisys-
tem unit with a display.
To pair units without a display, see sections
Pairing (via
pairing button)
.
Pairing information or a new code key can be received
by several activated units.
Pairing (via menu)
1. Choose Communication - Pair
2. Select Receive info on one unit. Ready to receive
pairing info is shown in the display.
3. Select New code on the other unit; select Yes.
4. Generate new code and send info? is shown in the
display. Select Yes (Now both the channel and the
coding information have been sent, and sound
transfer is eavesdrop-secure).
5. To pair another unit into your coded system, select
Send info instead on one of your paired units.
Pairing (via pairing button)
(The only way of pairing units without a display, with the
pairing button)
You can activate the Pairing function via the pairing but-
ton.
1. One brief press of the button opens the
Pairing
menu.
2. Two brief presses activate the Send info function.
3. One long press activates the Receive info function.
Units with both transmitters and receivers built in
Comfort Digisystem units with both transmitters and
receivers built-in can be paired separately.
When opening the pairing menu, choose the concerning
unit (transmitter/receiver). In units with both transmit-
ters and receivers, the pairing button controls the
transmitter.
The transmitter and receiver are paired separately in
these units. The code key is always the same for the
transmitter and the receiver when these are built-in in
the same unit.
The easiest way to get the same code key in the whole
Digisystem is to generate a new code key from the
combined unit; in that way the built-in receiver gets the
same code as the rest of the system.
8) More functions
Function indicator (LED)
The function indicator shows the unit’s status depending
on its setting.
When the DM05 starts, the function indicator shows
which channel is selected (1-10) by flashing green 1-10
times. If another channel has been paired in, this is indi-
cated by the green lamp lighting for four seconds when
the unit is started up.
On normal operation the indicator flashes every other
second.
During charging the indicator shows red.
When the charging is completed, the indicator shows
green.
When the battery gets low, the indicator flashes red
every other second.
Once the unit has been set to receive pairing informa-
tion, the indicator flashes green quickly.
When receiving pairing information, the indicator shows
green for four seconds.
When sending pairing information, the indicator flashes
red five times.
A constant green light indicates Change channel mode.
A constant red light indicates Change code mode.
An alternating red/green light indicates Factory reset
mode.
Microphone DM05 7
9) Radio range and channels
The transmitter and receiver have built-in antennas.
The radio range between the units is around 100 feet
(30 metres). This may however vary depending on the
particular environment you are in.
Like all radio systems, Comfort Digisystem communi-
cates on specific channels. If you use two transmitters
on the same channel or a neighbouring one, there may
be interference. Other electronic equipment can also
interfere with radio transmissions.
The channel that you use in your country is perhaps not
permitted abroad. Always get in touch with your hearing
aid provider in your country in order to find out which
channels are permitted in different countries.
Comfort Audio is not liable for unauthorized use of radio
waves, such as, but not limited to: interferences with
police communication, or strategic communication,
military installations etc.
10) Trouble shooting
The transmitter and receiver do not start
Charge the transmitter and receiver. Remember to press
the On/Off button down for 2 seconds to switch the unit
on. Check that the charger is connected to the plug
socket.
Poor speech intelligibility
The distance between the transmitter and the receiver
may be too long. The range is around 30 metres. The
distance between the microphone and the person who
is talking may also be too long; move the microphone
nearer to the person talking.
Try to change channel/environment.
Poor range and interference
In some environments involving, e.g., concrete, iron
or sheet metal structures, the range may be reduced.
There may also be equipment nearby causing interfe-
rence. Change channel.
No sound
Check that the transmitter and receiver are set to the
same channel.
Loud hissing noise (no sound transfer)
Check that the units are paired.
11) Battery maintenance
The rechargeable products in the Digisystem series are
equipped with Li-Pol batteries, ie. the same type of
batteries used for most mobile phones and laptop
computers on the market today. These types of batteries
are able to store large amount of energy in relation to
their weight and volume.
The capacity of Li-Pol batteries diminishes during its life
cycle. The battery type has no "memory effect”, which
would mean that you need fully discharge the battery
before charging to minimize capacity loss. This means
that you can just as well charge the battery often and
little, as opposed to seldom and much. Special charg-
ing circuits in the Digisystem products protect batteries
from overcharging.
The capacity of the Li-Pol batteries deteriorates faster
when they subjected to deep discharge. Therefore, all
products of the Digisystem are fitted with a function that
automatically turns off the product well before deep
discharge occurs. Deep discharge may still happen as
the battery has a certain self-discharge. A product that
is fully or partly charged will with enough time reach
a state when the battery deep discharges, unless the
charger is connected. To avoid this we recommend that
the battery is charged at least every 6 months.
Microphone DM05 8
13) Technical data
Type of transmitter: SST – SecureStream
Technology
Range: Approx. 100 feet (30 m)
Dimensions: 2.28 x 1.06 x 0.55 inches
(58 x 27 x 14 mm) incl. clip
Weight: 0.56 oz (16 g)
Frequency range: 904 - 927 MHz
Antenna: Built-in
Operating time: Up to six hours
Battery: Chargeable Li-Polymer
Charging time: Approx. two hours
Charger: 5V 220 mA
Microphone: Built-in, omnidirectional
The weights, dimensions, capacities, performance ratings and other data in
Comfort Audio’s brochures, prospectus, circulars, advertisements, price lists and
instructions sheets are mentioned only as general information. They are only ap-
proximate and shall not bind Comfort Audio.
12) Service and warranty
Warranty extension
Comfort Audio Inc. warrants this product sold to the
first end user (buyer) against defects in materials or
workmanship for the time period and as set forth below.
Pursuant to this Limited Warranty, Comfort Audio will,
at its own option, either (a) repair the product or the
parts determined to be defective, using new or refurbis-
hed parts, or (b) provide you with a new, or at our
option, a refurbished unit. The repaired or exchanged
unit is under warranty for the remainder of the original
product’s warranty period. The warranty does not in-
clude any other direct, indirect or consequential damage
or loss, or any third party damages or losses.
This Limited Warranty is for a period of two years from
the date of purchase as indicated by an original receipt
from a Comfort Audio authorized retailer, dispenser or
medical facility. Headphones and earphones have a
warranty of 30 days from purchase.
How to make a warranty claim
For warranty service, you must contact the Comfort
Audio Customer Service listed below to obtain an
RMA (Return Merchandise Authorization) number.
A description of the defect, your name, address and
telephone number is required.
Ship the product freight prepaid via UPS or its equiva-
lent, including a copy of the original purchase receipt,
any cables, earphones and base/charger unit, in its
original packaging or one that offers equal protection.
Insure your shipment for loss or damage. Comfort Audio
accepts no liability in case of damage or loss en route to
our offices.
This Limited Warranty does not cover
Damage from misuse, neglect or normal wear and tear.
Products that have been modified. Products purchased
or serviced outside the territory. If you purchased your
product outside the territory, see your retailer for war-
ranty information.
Product Registration
Please complete, sign and mail the Product Registra-
tion Card packed with your unit. It will make it easier to
contact you if it ever would be necessary.
Comfort Audio Inc.
350 South Northwest Hwy, Ste 300
Park Ridge, IL 60068 USA
To contact the Comfort Audio Customer Service,
call (847) 656 5450
or by e-mail usa@comfortaudio.com
4002355
Conforms to ANSI/UL Std.60065
Certified to CAN/CSA Std.C22.2 No.60065:03
Microphone DM05 9
14) Important safety instructions -
Read these before using your product
Not following the Important Safety Instructions, or trying to
repair and/or tampering the Equipment without the assistance
of an authorized technician will void the Limited Warranty.
Comfort Audio is not liable for any damages arising out of
such unauthorized uses, repairs, and/or tampering.
Please, heed all warnings. Read, keep and follow all
the safety instructions below.
WARNING!
• Too high a volume can seriously damage your
hearing.
• The necklace should not be used if there is a risk of
getting stuck, e.g. in a machine or other objects.
• Keep small parts out of reach of children and
animals. Choking hazard if swallowed.
• There is a danger of explosion if the battery is
incorrectly replaced.
Follow these instructions:
1) Do not use this product near water or in moist
environments of any kind.
2) The product shall not be exposed to excessive heat
such as sunshine, fire or the like.
3) Do not use the product near any heat sources such
as radiators, heat registers or other apparatus that
produce heat (e.g. amplifiers) and do not leave
products, e.g. in a warm car.
4) Do not disassemble the product.
5) You must not change the battery yourself; please
contact your point of purchase.
6) Do not defeat the safety features of the polarized
or grounded plug. A polarized plug has two blades
with different widths and will only fit into the socket
one way. A grounded plug has a third grounded
prong. The asymmetrical blades and the grounded
prong are there for your safety. If the provided plug
does not fit into your outlet, please consult a
qualified professional/electrician for replacement
of your outlet.
7) Never use a transmitter or receiver set to a non-
permitted frequency. Check with the frequency
authority in the country where the equipment is to
be used.
8) The products include radio transmitters. Do not
use products where it is not allowed to use
electronic equipment, e.g. on airplanes.
9) Never charge product in closed, unaired spaces
such as handbags, cases or other closed storage
bags.
10) Ensure that the power cord is not pinched or
damaged in any other way.
11) Unplug the product during lightning storms or if it
is not used for a long period of time.
12) Always start listening at a low volume and then
adjust it to a comfortable level.
13) Clean only with a dry cloth.
14) Only use the batteries and power supply or other
accessories specified by Comfort Audio.
15) The product contains sensitive electronic
equipment and must be handled carefully.
16) If the product does not operate normally, or if it
has been damaged in any way, service is required.
E.g. if the power-supply cord or plug is damaged, if
the product has been in contact with water or if
the product has been exposed to external impact,
for instance been dropped. Refer all servicing to
authorized service personnel.
17) Should the product break open because of damage,
service should only be done by qualified service
personnel.
Subject to change
Manufactured by:
Comfort Audio AB
Comfort Audio AB, Box154, SE-301 05 Halmstad, Sweden
Tel. +46 (0)35 260 16 00 Fax +46 (0)35 260 16 50
Local US office:
Comfort Audio Inc, 350 South Northwest Hwy, Ste 300
Park Ridge, IL 60068 USA
T (847) 656 5450
usa@comfortaudio.com www.comfortaudio.us
MA0355 Ver 1.00 Rev A 110325

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