GN Hearing A S BTB-1 Bluetooth audio streamer for hearing instruments with wireless capabilities User Manual BTB 1 UserMan

GN Hearing A/S Bluetooth audio streamer for hearing instruments with wireless capabilities BTB 1 UserMan

BTB-1 UserMan

1
USER GUIDE
2
3
Statement:
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) this de-
vice may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may
cause undesired operation.
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 pro-
tection 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 inter-
ference 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:
Welcome
Congratulations on your purchase of a ReSound Unite Phone
Clip.
ReSound Unite Phone Clip will allow you to wirelessly connect
your ReSound hearing aids to Bluetooth-enabled mobile phones.
This enables clear and hassle-free phone connectivity, whether
you are at home, in the office or on the move.
Please read this manual carefully to fully benefit from the
ReSound Unite Phone Clip. Ask your hearing care professional if
you have any questions.
For further information you can also check
the www.resound.com/unite web site.
For your safety, carefully read the chapter Important Information,
on pages 24-30
FCC ID:X26BTB-1
4
5
National restrictions:
Norway: You are not allowed to operate the equipment within 20
km of the centre of Ny Ålesund.
This product is in compliance with the following regulatory stan-
dards:
In EU: The device conforms to the Essential Requirements ac-
cording to - Annex I of Council Directive 93/42/EEC for medical
devices (MDD) and essential requirements and other relevant pro-
visions of Directive 1999/5/EC (R&TTE). The declaration of con-
formity may be consulted at www.resound.com
In US: FCC CFR 47 Part 15, subpart C, section 15.247 and
15.249.
Other identified applicable international regulatory requirements
in countries outside EU and US. Please refer to local country
requirements for these areas.
The product is categorized as receiver class 2 according to
EN 300 440.
• 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 the receiver is connected.
• Consultthedealeroranexperiencedradio/TVtechnicianfor
help.
Changes or modifications can void the user’s authority to operate
the equipment.
Intended use
ReSound Unite Phone Clip is intended to enable ReSound wire-
less hearing instrument users to better follow phone conversa-
tions. The essential performance of the ReSound Unite Phone
Clip is to transfer signals between a phone with Bluetooth capa-
bilities and a ReSound wireless hearing instrument.
List of countries
Products are intended for sale in countries within European Eco-
nomic Area as well as Switzerland.
6
7
Contents
Description ......................................8-9
Getting Started ....................................10
ON and OFF ......................................12
Bluetooth Pairing...................................13
Basic Use ........................................16
VolumeControl ....................................18
Operating Time ....................................18
Wearing Your ReSound Unite Phone Clip ................19
Light indicators ....................................21
Introduction to Bluetooth ......................... 22-23
Important Information ............................24-30
Technical specifications .............................31
Warranty .........................................32
Troubleshooting guide ...........................34-39
Notes ........................................40-41
8
9
5 Multifunctional button
6 Clip
7 Pairing button (behind cover)
Description
1 Volumecontrol
2 Mini-USB for charging
3 LED (Light Emitting Diode) indicator
4 Own voice microphone inlet
5
7
4
1
3
6
2
10
11
Pairing to hearing instruments
Note! The following information is intended primarily for your hear-
ing care professional, who in most cases will complete the tasks
that are necessary before the ReSound Unite Phone Clip can
be used with your hearing instruments. However, the process is
designed to be simple and should be easily accomplished by
almost anyone.
1. Make sure ReSound Unite Phone Clip is turned on. Your hear-
ing instruments must be off – open the battery door.
2. With the tip of a pen or similar object, press the small pairing
button on the back of your ReSound Unite Phone Clip device
hidden by the bottom cover (see picture below). Press shortly
until the LED indicator turns to solid blue. Your ReSound Unite
Phone Clip will remain in pairing mode for 30 seconds.
Getting Started
Charging the Battery
Before using your ReSound Unite
Phone Clip, you need to fully
charge the rechargeable battery.
To charge it, plug the charging
cable as shown in the picture be-
low. Then plug the other end of
the charging cable into a power
outlet.
During the charging process, the
LED indicator will show a solid red
light. A solid green light will indi-
cate the fully charged status.
Charging an empty battery typi-
cally takes about 3 hours. It is
safe to leave the charger connected overnight – the battery can-
not be overcharged.
•  When charging your ReSound Unite Phone Clip for the rst
time, leave it to charge for at least 3 hours, even if the battery
indicator turns into a solid green light earlier.
•  For safety reasons, recharge the battery only with chargers
supplied by ReSound.
12
13
Bluetooth Pairing
If your mobile phone is Bluetooth-enabled and supports the
appropriate profiles, it can communicate with the ReSound Unite
Phone Clip only after completing two simple procedures: pairing
and connecting.
The pairing procedure allows you to control which Bluetooth
devices are permitted to communicate with each other. It needs
to be completed only once for each device you wish to use with
your ReSound Unite Phone Clip.
You can pair up to 8 Bluetooth devices with the Phone Clip, but
only 1 Bluetooth device can be connected at a time.
The pairing procedure is described in the section which follows.
Once a mobile phone is permitted to communicate with the
ReSound Unite Phone Clip by the pairing procedure, the connec-
tion procedure configures the device to actually output its audio
signal over the Bluetooth connection. This procedure is also de-
scribed in the section which follows.
Pairing to mobile phone
The pairing procedure is controlled by your mobile phone.
Different mobile phones have different menu structures. You
should therefore refer to your mobile phone’s manual if you
cannot complete the pairing procedure with the generic steps
described here.
3. While pairing mode is activated, close the battery doors of
both hearing aids and make sure they are ON. A successful
pairing will be indicated by an audible melody played in both
hearing aids. You are now ready to use the ReSound Unite
Phone Clip!
ON and OFF
To turn ON your ReSound Unite Phone Clip, press and hold the
multifunctional button (5 on page 9) for about 1 second until you
see the LED indicator displaying a solid blue light. The blue light
will be on for 4 seconds.
To turn it OFF, press and hold the multifunctional button for about
3 seconds until the LED indicator flashes quickly 4 times and then
goes dark.
14
15
1. The ReSound Unite Phone Clip is OFF. Place your mobile
phone next to the Phone Clip, and make sure your phone is
ON.
Press and hold the multifunctional button on the Phone Clip
for 7 seconds. The LED will now be solid blue for two minutes
indicating that Bluetooth pairing mode is active. The ReSound
Unite Phone Clip will be in Bluetooth pairing mode only in the
first two minutes after having been turned ON.
2. Find the connectivity settings of your phone. Look for the
“Bluetooth” feature in the main menu or one of the submenus,
such as “Connectivity”.
3. On your mobile phone, ensure that the Bluetooth is turned
ON.
4. On the mobile phone choose to search for Bluetooth devices.
5. Your mobile phone should present a list of Bluetooth devices
discovered. Select “Hearing Aid Phone” from this list.
6. Your mobile phone may then ask you to enter a passcode. If
so, enter “0000” (four zeros).
Your ReSound Unite Phone Clip should now be paired to your
mobile phone. Some mobile phones may ask which Bluetooth
service you wish to enable. enable, select “Headset”.
Connecting
Once your mobile phone and ReSound Unite Phone Clip are
paired, the mobile phone needs to be connected before it will
actually send the appropriate audio signals.
This function should also appear in your mobile phone’s “Blue-
tooth” menu, usually under a list of “Paired Devices”. In that list,
highlight your ReSound Unite Phone Clip and select “Connect”.
• WhenyourReSoundUnitePhoneClipandmobilephoneare
connected, you may see a headset symbol on the main screen
of your mobile phone, similar to this:
The connection between the ReSound Unite Phone Clip and the
mobile phone will be maintained for as long as both devices are
turned ON and remain within range of each other. If either device
is switched OFF or moves out of range, you may have to perform
the connection procedure again.
On some phone you can configure “Automatic Reconnection”.
We recommend that you do so if the feature is available. Refer to
the user guide of your mobile phone for instructions on how to do
this if supported.
16
17
To reject incoming calls press the multifunction button twice on
the Phone Clip.
You can also reject calls by pressing the reject button on your
mobile phone.
Making a Call
Initiating a phone call is not any different with or without ReSound
Unite Phone Clip: Simply use the mobile phone keyboard to enter
or select the number to dial.
If connected, the phone streaming mode will be activated auto-
matically, and you will hear the ringing tones in the hearing instru-
ments
Ending a Call
To end a call via your ReSound Unite Phone Clip, briefly press the
multifunctional button. The call will terminate and your hearing
instruments will return to the last used program.
You can also end calls by pressing the appropriate button on your
mobile phone.
Transfer a Call
You can transfer back a call from the ReSound Unite Phone Clip
to your mobile phone by briefly pressing the multifunctional but-
ton during an active call.
Basic Use
Accept and Reject Calls
Turn the device ON. When a call is received on your mobile phone,
the Bluetooth indicator will flash and after a certain delay you will
hear the ringing tone in your hearing instruments.
To accept the incoming call, briefly press the multifunctional but-
ton on your ReSound Unite Phone Clip. If you are wearing two
hearing instruments, the caller’s voice will be streamed to both
of them.
You can also accept calls by pressing the accept button on your
mobile phone.
•Ifdesired,yourhearingcareprofessionalcansetyourhearing
aids’ microphones to remain ON even in the event of an in-
coming call, so to mix the phone streamed signal with external
sound.
•  In case you are also using a ReSound Unite TV (optional),
please notice that mobile phone calls will always take priority
over other audio sources. In the event of an incoming phone
call, the ReSound Unite TV will be temporarily stopped. It
will be automatically resumed once the phone call has been
terminated.
18
19
Wearing Your ReSound Unite Phone Clip
Clip your ReSound Unite Phone Clip on your sweater, jacket or
other clothing so that the microphone inlet faces upwards. Keep
the device within a range of 10-30cm from your mouth. You may
also clip it on to the sun visor in your car.
Reset the Phone Clip
With the tip of a pen or similar object, press the small pairing but-
ton on the back of your ReSound Unite Phone Clip device hidden
by the bottom cover (see picture below). Keep pressed for at least
10 seconds and when released, the device is reset.
Volume Control
Your ReSound Unite Phone Clip has an easy to operate volume
control (1 on page 8) for increasing or decreasing the loudness of
the streamed signal.
Depending on the phone, you can also utilize the volume control
that is built in your mobile phone.
It is also possible to use the ReSound Unite Remote Control
(optional) to adjust the volume.
Operating Time
Battery consumption and the operating time of your ReSound
Unite Phone Clip depend greatly on the usage of the device.
Your ReSound Unite Phone Clip battery can be recharged hund-
reds of times. If the operating time reduces substantially, please
contact your hearing care professional.
20
21
Light indicators
The Light indicator (3 on page 8) on your ReSound Unite Phone
Clip serves as a multipurpose user interface, providing informa-
tion on the status of your device.
ReSound Unite
Phone Clip status
Mode Condition
Pairing Solid Blue for 20 seconds Ready for pairing with
hearing instruments
Solid Blue for 2 minutes Ready for pairing with
Bluetooth phone
Charging Solid Red Charging
Solid Green Fully charged
Normal Flashes Blue twice every Incoming call or
2 seconds call connected
Flashing Red once every Battery low
5 seconds
Flashes blue 2 times after No call pending
pressing multifunctional
button
Off None of the normal
modes are present,
or Power is Off
LED indicator
22
23
Second, the range of possible applications on a Bluetooth-
enabled device is defined by “profiles”. The device you wish to
use with your ReSound Unite Phone Clip must support the
appropriate Bluetooth profiles.
To receive or place phone calls your mobile phone must support
either the “handsfree” or the “headset” profile. Many, but not all
mobile phones support these Bluetooth profiles. Look for this
information in your mobile phone user guide.
Bluetooth Operating Range
In free air, your ReSound Unite Phone Clip supports Bluetooth
operation up to a range of approximately 10 meters. Line-of-
sight between the devices is not required. However, the following
factors may affect the maximum range:
• Interferenceintheenvironment
• Themobilephonewhichyouareconnectingtomaysupport
a more limited range than the 10 meters supported by the
ReSound Unite Phone Clip
If your mobile phone moves out of range, the connection will
be terminated. If the device is then moved again within the range,
the ReSound Unite Phone Clip will attempt to re-establish con-
nection. Whether it achieves to do so will depend on delay since
the link was broken and on the mobile phone properties.
Introduction to Bluetooth
What is Bluetooth?
Bluetooth provides a way for devices like mobile phones to com-
municate wirelessly.
First, check whether the phone you wish to use offers Bluetooth
connectivity. Look for the following symbol on the device or its
user guide.
24
25
General warnings
• Keepthisdeviceoutofreachofchildren
• ReSoundUnitePhoneClipuseslow-powereddigitallycoded
transmissions in order to communicate with other wireless de-
vices. Although unlikely, nearby electronic devices may be af-
fected. In that case, move the ReSound Unite Phone Clip away
from the affected electronic device.
• WhenusingReSoundUnitePhoneClipandthedeviceisaf-
fected by electromagnetic interference, move away from the
source.
• Avoidexposingyourproducttorain,moistureorotherliquids
to protect against damage to the product or injury to you.
• Keeptheproductandanycordsandcablesawayfromoper-
ating machinery.
• Iftheproductoverheats,iftheproducthasbeendroppedor
damaged, if the product has a damaged cord or plug, or if the
product has been dropped in a liquid, discontinue use and
contact your hearing care professional.
• Disposeoftheproductaccordingtolocalstandardsandregu-
lations.
• Donotuseinareaswherethereareexplosivehazards.
Important Information
Maintenance and Care
• Clean the ReSound Unite Phone Clip using a damp cloth.
Never use household cleaning products (washing powder,
soap etc…) or alcohol to clean the device
• WhenReSoundUnitePhoneClipisnotinuse,turnitOFFand
store it safely
• Protect ReSound Unite Phone Clip from excessive moisture
(bathing, swimming) and heat (radiator, car dashboard).
Protect it from excessive shock and vibration.
• Protect the microphone and charger inlets from debris and
dirt. If necessary, use the cleaning brush provided with your
hearing instruments to clean these areas.
26
27
• Donotmakeanychangesormodicationstothisdevice.
• Opening the ReSound Unite Phone Clip might damage it. If
problems occur which cannot be resolved, consult your hear-
ing care professional.
• ReSoundUnitePhoneClipmayonlyberepairedbyanautho-
rized service center.
• Do not use ReSound Unite Phone Clip in areas where RF
transmission is prohibited, e.g. air planes etc.
• Do only connect ReSound Unite Phone Clip to connections
which it is explicitly intended for.
BUILT-IN BATTERY CARE: Please observe the
following if the product contains a battery
• Yourproductispoweredbyarechargeablebattery.
• Thefullperformanceofa newbatteryisachievedonly after
two or three complete charge and discharge cycles.
• The battery can be charged and discharged hundreds of
times, but will eventually wear out.
• Unplugthechargerfromtheelectricalplug andthe product
when not in use. Do not leave a fully charged battery connect-
ed to a charger, since overcharging may shorten its lifetime.
Ignition of flammable atmospheres
• Donotusetheproductinenvironmentswherethereisadan-
ger of ignition of flammable gasses.
General Precautions
• Donotusethisdeviceinlocationswhereitisforbiddentouse
electronic devices.
• X-rayradiation(e.g.CTscans,MRIscans)mayadverselyaffect
the correct functioning of this device. We recommend that you
switch the device OFF before undergoing X-ray procedures
and keep it outside the room.
• High-powered electronic equipment, larger electronic instal-
lations and metallic structures may impair and significantly
reduce the operating range.
• If the hearing instrumentsdo notrespond to the device be-
cause of an unusual field disturbance, move away from the
disturbing field.
• Yourhearinginstrumentsandthisdeviceweregivenaunique
communication code during the fitting. This ensures that the
device will not affect hearing instruments worn by others.
28
29
• Ifleftunused,afullychargedbatterywillloseitschargeover
time.
• Leavingtheproductinhotplaces,suchasinaclosedcarin
the summer conditions, will reduce the capacity and lifetime of
the battery.
• Aproductwithacoldbatterymaynotworktemporarily,even
when the battery is fully charged. Battery performance is par-
ticularly limited in temperatures well below freezing.
Battery warning!
• ”Caution”–Thebatteryusedinthisproductmaypresentarisk
of fire or chemical burn if mistreated.
• Do not attempt to open the product or replace the battery.
It is built-in and not changeable. Use of other batteries may
present a risk of fire or explosion and the warranty will be ter-
minated.
• Thebatteryinyourproductcannotberemovedorreplaced
by the user. Any attempt to do so is risky and may result in
damage of the product.
• Only recharge the ReSound Unite Phone Clip only with a
power supply unit that has been supplied together with the
product.
• Disposeofbatteriesaccordingtolocalregulations.Pleasere-
cycle when possible.
• Donotdisposethebatteryashouseholdwasteorinareas
it may explode.
• Batteriesmayexplodeifdamaged.
CHARGER CARE: Please observe the follow-
ing if the product is supplied with a charger
• Do not attempt to charge your product with anything other
than the AC adapter provided. The use of any other types may
damage or destroy the product and could be dangerous. Use
of other chargers may invalidate any approval or warranty.
• Foravailabilityofapprovedenhancements,pleasecheckwith
your hearing care professional.
• Charge the product according to the instructions supplied
with the product.
30
31
Charger warning!
• When youdisconnect the power cord or any enhancement,
grasp and pull the plug, not the cord.
• Neveruseachargerthatisdamaged.
• Donotattempttodisassemblethechargerasitmayexpose
you to dangerous electric shock.
• Incorrect reassembly can cause electric shock or re when
the product is subsequently used.
• Avoidchargingyourproductinextremelyhighorlowtempera-
tures and do not use the charger outdoors or in damp areas.
Technical specifications
Operating range: up to 3 meters
Wireless: 2,4 GHz
Operating temperature: 0 to 55 degree C
Storage temperature: -20 to 60 degree C
Temperature test, transport and storage information
The product is subject to various tests in temperature and damp
heating cycling between -25 C and +70C according to internal
and industry standards.
32
33
What is not covered by this warranty?
Problems arising from improper handling or care, excessive use,
accidents, repairs made by an unauthorized party, exposure to
corrosive conditions or damage due to foreign objects entering
the device are NOT covered by the limited warranty and may void
it. The above warranty does not aff ect any legal rights that you
might have under applicable national legislation governing sale of
consumer products. Your Hearing Care Professional may have
issued a warranty that goes beyond the clauses of this limited
warranty. Please consult your Hearing Care Professional for
further information.
Serial number:
Date of purchase:
Warranty
The ReSound Unite Phone Clip is covered by a limited warranty
issued by the manufacturer for a period of 12 months from the
day of the original purchase. Please notice that extended warran-
ties may apply in your country. Please contact your local Hearing
Care Professional for more information.
What is covered by this warranty?
Any electrical component, that because of workmanship, manu-
facturing or design defects fails to function properly under nor-
mal use during life of this warranty will be replaced or repaired
at no charge for parts or labour when returned to the point of
purchase.
If it is determined that repair is not feasible, the entire unit may be
replaced with an equivalent unit upon mutual agreement of the
Hearing Care Professional and the customer.
34
35
SYMPTOM
The Phone Clip does not
respond to any (long or short)
presses on the multifunctional
button
The pairing button on the
Phone Clip is pressed but no
pairing melody is played in
the hearing aid
The Phone Clip cannot be
found by the mobile phone
when searching for it in the
Bluetooth menu
CAUSE
The battery in the Phone Clip is
depleted
The Phone Clip and hearing aid
are not within wireless range
The Phone Clip and hearing aid
have not been simultaneously in
pairing mode
The Phone Clip and mobil phone
are not within wireless range
The Phone Clip is not in Blue-
tooth pairing mode
POSSIBLE REMEDY
Charge the battery
Assure that Phone Clip and hearing aids are within wireless
range, and repeat pairing process
Repeat pairing process, and assure that the battery doors on
both hearing aids are closed within 20 seconds after the pairing
button has been pressed on the Phone Clip
Assure that Phone Clip and mobile phone are within wireless
range, and repeat Bluetooth pairing process
The Phone Clip is only in Bluetooth pairing mode for 120 sec-
onds after having been activated. Repeat the Bluetooth pairing
process
TROUBLESHOOTING GUIDE
36
37
SYMPTOM
The Bluetooth pairing failed
The mobile phone is ringing
but the light indicator on the
Phone Clip does not flash,
and no ringing tones will
sound in the hearing aids
CAUSE
The Phone Clip left Bluetooth
pairing mode before mobile
phone completed the pairing
session
The user entered a wrong
4-digit PIN code
The Phone Clip is powered off
The Phone Clip and mobile
phone have not been paired
The Bluetooth connection
between the Phone Clip and
the mobile phone is lost
POSSIBLE REMEDY
Repeat the Bluetooth pairing process, and assure that the pro-
cess is completed within 120 seconds after having been acti-
vated in the Phone Clip
Repeat the Bluetooth pairing process and if a PIN code is re-
quested, enter 0000 (four zeros)
Power on the Phone Clip
Perform the Bluetooth pairing process and make a Bluetooth
connection between the Phone Clip and the mobile phone
Assure that Bluetooth is enabled in the mobile phone and make
a Bluetooth connection between the Phone Clip and the mobile
phone again, e.g. by pressing the multifunction button briefly on
the Phone Clip.
As for any details of the Bluetooth operation of the mobile phone,
please refer to its user guide
TROUBLESHOOTING GUIDE
38
39
SYMPTOM
The mobile phone is ringing
and the light indicator on the
Phone Clip do flash, but no
ringing tones will sound in
one or both hearing aids
The remote user does not
hear my voice clearly
The sound from the hearing
aids is either to low or too
high
There is no sound in the
hearing aids although being
in the phone program
CAUSE
The Phone Clip and hearing aids
are not within wireless range
The battery in the hearing aid
is so depleted that it no longer
supports audio streaming
The Phone Clip microphone does
not pick up your voice correctly
The audio input level is not
suitable for listening
The Phone Clip and hearing aids
are not within wireless range
POSSIBLE REMEDY
Assure that Phone Clip and hearing aids are within wireless
range
Replace the battery in the hearing aid with a new one
Assure that the Phone Clip microphone is kept close to your
mouth, and that the Phone Clip does not rub against any clothing
during the call
Adjust the volume on the mobile phone until the sound is suitable,
or adjust the volume using the ”+” and ”-” keys on the Phone Clip
until the sound is suitable.
Alternatively (option), use the ”+” and ”-” keys on the Remote Con-
trol for doing this operation
Assure that Phone Clip and hearing aids are within wireless
range
TROUBLESHOOTING GUIDE
40
41
Notes: Notes:
42
43
Any issues relating to the EU Medical Device Directive
93/42/EEC and R&TTE Directive 1999/5/EEC should be
directed to GN Hearing A/S, Lautrupbjerg 7,
DK 2750 Ballerup, Denmark
Please ask your local hearing care professional con-
cerning disposal of your ReSound Unite accessory
Be aware of information marked with the warning symbol
WARNING points out a situation that could lead to
serious injuries,
CAUTION indicates a situation that could lead to
minor and moderate injuries
Advice and tips on how to handle your ReSound Unite
accessory better.
Equipment includes RF transmitter
Product is a Type B applied part
44
17359100-GB-10.01 Rev.B
Worldwide Headquarters
ReSound A/S
Lautrupbjerg 7
DK-2750 Ballerup, Denmark
Tel.: +45 45 75 11 11
Fax: +45 45 75 11 19
www.resound.com
United Kingdom
GN ReSound Ltd.
Kirtlington Business Centre
Portway
Kirtlington
Oxon OX5 3JA
Tel.: +44 1869 352 800
Fax: +44 1869 343 466
www.gnresound.co.uk
Australia
GN ReSound Pty. Ltd.
Unit R1 Regents Park Estate
391 Park Road
Regents Park NSW 2143
Tel.: (free) 1800 658 955
Fax: +61 2 9743 7472
www.gnresound.com.au
New Zealand
GN ReSound (NZ) Ltd.
12 Parkway Drive
Mairangi Bay
Auckland
Tel.: (free) 0800 900 126
Fax: (free) 0800 007 695
www.gnresound.co.nz

Navigation menu