MAXTEK DH900 User manual

USER GUIDE
Wireless Amplied Headset
MODEL NUMBER: DH900
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk

Contents
1. Welcome Section
2. General Information & Safety Instructions
3. Contents & Features
4. Controls
5. Setup
7. Using the Headset
10. Trouble Shooting
11. Specications
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk

Welcome Section
Congratulations!
You have made an excellent choice with the purchase of this quality
MAXTEK®product.
By doing so you now have the assurance and peace of mind which
comes from purchasing a product that has been manufactured to
the highest standards of performance and safety, supported by the
high quality standards of Quesh Ltd.
We want you to be completely satised with your purchase so this
MAXTEK®product is backed by a comprehensive manufacturer’s
3 year warranty and outstanding after sales service through our
dedicated helpline.
We hope you enjoy using this product for many years to come.
If you require technical support or in the unlikely event that your
purchase is faulty, please telephone our helpline for immediate
assistance. Faulty product claims made within the 3 year warranty
period will be repaired or replaced free of charge provided that you
have a satisfactory proof of purchase (keep your receipt safe).
This does not affect your statutory rights. However be aware that the
warranty will become null and void if the product is found to have
been deliberately damaged, misused and/or disassembled.
1
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk

General information &
Safety Instructions
Rechargeable 3.7V Polymer Li-ion 350mA battery inside headset.
Do not dispose of batteries in your household waste.
Please contact your local authority for details on safe disposal.
• Never throw batteries into a re or expose to excessive heat sources.
• If batteries are swallowed, please seek immediate medical attention.
• Always ensure correct +/- battery polarity when installing batteries.
• Do not recharge non-rechargeable batteries.
Equipment, which is marked with the WEEE logo
(as shown on the left), should not be thrown away with your household waste.
Contact your local authority waste disposal department, as they will be able to
provide details of the recycling options available in your area.
Electrical and electronic equipment (WEEE) contains materials, parts and
substances, which can be dangerous to the environment and harmful to
human health if the waste of electrical and electronic equipment (WEEE) is not
disposed of correctly.
Equipment, which is marked with the WEEE logo
(as shown on the left), should not be thrown away with your household waste.
Contact your local authority waste disposal department, as they will be able to
provide details of the recycling options available in your area.
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
2

3
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
Contents & Features
Contents
1 x Headset
1 x Pack Assorted Ear Buds
1 x Transmitter Base
1 x Mains Adaptor
1 x 3.5mm to RCA Cable
1 x 3.5mm AUX Cable
1 x 3.5mm to 6.5mm Adaptor Jack
1 x External Microphone with Adaptor & Holder
Features
• 2.4GHz RF Wireless digital technology
• Hearing enhancement for listening & communication
• Auto mute’s audio for verbal communication
• Ultra clear stereo or mono sound
• Balance control (left and right audio channels)
• Adjustable tone clarity
• Power save when headset is out of range
• Highly sensitive microphone
• Connects to most devices via AUX port
• Rechargeable Polymer Li-ion battery
• Extra battery charging compartment
• 30m Range
• 120dB maximum volume (equivalent to a loud live concert)
Please Note:
For users with pacemakers, it is recommended that you check with a medical
professional or your health advisor before using this product. Switch the device off
immediately if you notice or suspect ANY adverse effects.

Controls
After Sales Support
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REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
4
1
2
3
4
57
8
1.
2.
3.
4.
5.
6.
7.
8.
Ear Bud
Volume Control
Power Indicator
Talk Button
On/Off Switch
Microphone
Balance (Left/Right)
Battery
6
1
2
3 5 64
7
Headset Receiver
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Charging Cradle
Tone LED
Tone Select Button
Power LED
Charging LED
Spare Charging LED
Charge Bay
DC In Port
Audio In Port
Stereo/Mono Switch
Transmitter Base
8 910

5
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
Setup
Connecting the transmitter
• Connect the power adaptor to the mains outlet and the other end
• into the ‘DC IN’ port located on the transmitter’s rear panel.
Charging receiver
• Insert the battery into the headset, making sure the batteries are in
• the correct polarity position.
• Place the headset into the charge port on the transmitter. The LED
• will light up red when charging and green once fully charged.
• This will take about 2 hours and 30 minutes.
• Insert the spare batteries into the transmitter’s charge bay located
• on the right side on the unit.
Changing the ear buds
• Select the correct size of ear buds to attach (large or small).
• Pull the ear buds off the headset.
• Push on the required ear bud on to the open end on the headset
• and let them snap into position.

Connecting direct to an audio source
• Connect the 3.5mm AUX cable to the ‘AUDIO IN’ port on the rear of
• the transmitter then choose one of the following to connect to:
• Phono/RCA (Red & White) Line out ports
• 3.5mm Headphone/Line out port
• 6.3mm Headphone/Line out port
• Microphone
• Scart
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
6
6.3mm Adaptor
Scart Adaptor
(Not included)
RCA Adaptor
Microphone
3.5mm AUX
Please Note:
Plugging directly into an audio port of a device may cause the device to override
it’s main speakers, so the only sound available will be heard through the headset
only. If this happens then it is best to set the microphone up.
Connecting to a T.V.

7
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
3.5mm AUX cable
This will connect any device that uses a 3.5mm output.
This is typically found on mobile phones, PC/laptops/tablets,
personal MP3 players, radios, portable DVD players, etc.
3.5mm to 6.3mm Adaptor
This will connect any device that uses a 6.3mm output. Connect
your ‘3.5mm AUX cable’ in to the rear of this adaptor and plug the
adaptor in to t this type of output. This type of output is typically
found on hi-’s, TV’s, electronic instruments, etc.
3.5mm to RCA cable
This will connect any device that uses an RCA or phono output.
Connect your ‘3.5mm AUX cable’ in to the port of the ‘3.5mm to
RCA cable’ to t this type of output. This is typically found on TV’s,
large hi-’s, video cameras, etc
Scart (Not included)
This will connect any device that uses a scart output. Connect your
‘3.5mm AUX cable’ in to the port of the ‘Scart cable’ to t this type
of output. This is typically found on TV’s, etc
The green LED indicator will ash as soon as you have connected
the unit to power. The green LED will stay on once an audio source
has been detected.

Connecting the microphone
If you are unable to connect directly to an audio source or the audio
source cuts off when connected so guests are unable to listen to the
audio source, then use the microphone supplied.
• Connect the 3.5mm AUX cable to the ‘AUDIO IN’ port on the rear of
• the transmitter the other end to the port on the end of the micro
• phone cable.
• Use the adhesive strip to fasten the microphone holder adjacent to
• the speaker so that the microphone can be positioned a little above
• the speaker.
• Please set the TV on to MONO and at a low volume, then adjust as
• required.
Please Note:
Before fastening down the microphone holder into position please move the
microphone around to find the best possible position for sound input. Most flat
screen TV’s have the speaker underneath the unit.
The green LED indicator will ash as soon as you have connected
the unit to power. The green LED with stay on once an audio source
has been detected.
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
8

9
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
Using the Headset
Putting on the headset
• Switch on the audio source and turn the volume dial down on the
• headset.
• Flex the arms outwards until the ear buds can be inserted in to your
• ears. Gently press the ear buds into a comfortable position.
• Switch the headset receiver to ‘ON’ and slowly turn the volume up.
The microphone button
The microphone opening at the side of the headset receiver will pick
up the sounds of your surroundings making them louder.
• Press the headset receiver button to activate the in-built
• microphone. The LED will turn from green to red and you will hear •
• 2 short beeps. This will also cut out the current audio device you
• are currently listen too.
• To return to the audio device press the headset receiver button
•again. This will disable the in-built microphone and the LED will
• return to green.
Please Note:
Using the headset in this mode can be an assisted listening device within your daily
life, helping you to hear other people better.
Adjusting tone clarity
You can customise your listening experience by adjusting the tone
clarity. Press the ear icon button on the transmitter to cycle through
the modes. Effect
Flat
Bass & Treble
Boost
Treble Boost
Bass Boost
Default
1
2
3
LED indicator

After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
10
Trouble Shooting
No sound
• Check that the mains is plugged in and switched on and the other
• end if connected to the ‘DC IN’ on the transmitter.
• Check the headset receiver button is ‘ON’.
• Check/swap the battery power of the headset as it maybe too low.
• Check the audio device’s output is set correctly.
• Check the audio device’s volume level if using the microphone.
• Check the headsets volume level.
• Check you are within range of the transmitter.
• Check if a large electrical device is too close to the transmitter.
• Check the headset microphone is not covered.
Distortion
• Check/swap the battery power of the headset as it may be low.
• Audio volume is too low from chosen audio device.
• Large electrical device too close to the transmitter.
• In-built microphone is partially covered.
• Check that you are wearing the headset correctly.
Balance control
Using the dial on the back of the headset receiver you can change
the bias of the left or right audio channel.
• Use a small coin to move the dial to the left or right to balance your
• personal audio preference.

11
After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
Specification
Wireless Amplified Headset
• Wireless RF frequency 2400MHz-2483MHz
• GFSK Transmission mode
• Max Volume: 120dB (equivalent to a loud live concert)
• 30m operating range
• Signal-to-noise ratio: >70dB
• Frequency response: 20Hz-20KHz
• Distortion: < 0.5%
• Headset: 3.7V rechargeable polymer Li-ion 350mA battery
• Transmitter base: DC5V 500mA
• Battery duration approximately 5 hours
• Charge time approximately 2.5 hours

After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
Warranty
This product is guaranteed to be free from defects in workmanship and parts for a period of 36 months
from the date of purchase. Defects that occur within this warranty period, under normal use and care,
will be repaired, replaced or refunded at our discretion, solely at our option with no charge for parts and
labour. The benets covered by this warranty are in addition to all rights and remedies in respect of the
product the consumer has under existing U.K. laws.
Proof of Purchase
This warranty is valid for the original purchase and is not transferable.
Please keep your purchase receipt as proof of purchase and as proof of the date of when the purchase
was made. The receipt must be presented with the warranty card when making a claim under this
warranty.
Service during the Warranty Period
Please ensure the product is properly packaged so as to ensure that no damage occurs in transit. Also
make sure that you have included a detailed explanation of the problem.
Extent of the Warranty
This warranty is limited to defects in workmanship or parts. All defective products or parts will be
repaired or replaced. This warranty does not extend to accessories.
Normal Wear and Tear
This warranty does not cover normal wear and tear of the product or parts.
Exclusions
This warranty does not cover the following:
• Any defect caused by accident, misuse, abuse, improper installation or operation, lack or reasonable
care, unauthorised modication, loss of parts, tampering or attempted repair by a person not
authorised by the distributor.
• Any product that has been damaged by lightning strike either directly or indirectly, or on a main’s
or vehicle outlet power surge or liquid ingress.
• Any product that has not been installed, operated or maintained in accordance with the
manufacturer’s operating instructions provided with the product.
• Any product that has been used for purposes other than domestic use.
• The product if it is located outside of the U.K. and Ireland
• Any damage caused by improper power input or improper cable connection.
Warranty Certificate

After Sales Support
UK/N.IRELAND HELPLINE NO:
REP.IRELAND HELPLINE NO:
WEBSITE:
EMAIL:
01270 508538
1800 995 036
www.quesh.co.uk
Warranty Card
Wireless Amplied Headset
Please keep your purchase receipt together with your warranty card
Fault Description:
Name:
Address:
Date of purchase:
Location of purchase:
Service Helpline
QUESH LTD,
1 SOLWAY COURT,
CREWE BUSINESS PARK,
CW1 6LD
We recommend that you attach a photocopy of your receipt, showing the date of purchase, to this
warranty card and keep it for your reference. In the event of a product fault, please call the After Sales
Support team. Please ensure that you have the product details (as shown on this card) to hand so that
the support team are able to respond as quickly and efciently as possible.
Model Number: DH900

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