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ENGLISH

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OSHA GUIDELINES FOR NOISE EXPOSURE LIMITS

The Occupational Safety Health Administration (OSHA) has issued 
headphone usage recommendations for maximum daily exposure and 
sound pressure levels [measured in decibels (dB)]. A decibel is a unit 
of sound measurement that increases exponentially with volume. For 
example, conversational speech is typically around 60dB, and a rock 
concert in a stadium is often about 110dB.

90dB

8 hours

95dB

4 hours

100dB

2 hours

105dB

1 hour

110dB

30 minutes

115dB

15 minutes

120dB

Avoid as damage may occur

 

FCC NOTICE

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.

WARNING!

 

•  Warnings or announcements may be unnoticed when you are  

 

  using the headphones. You should be aware of ambient sounds  

 

  while wearing the headphones, and recognize them as needed. 

 

•  Long-term exposure to loud music may cause permanent hearing  

   damage. 
 

•  Do not attempt to modify this product as it could result in    

 

  personal injury and/or product failure.

 

•  If water or other foreign substances permeate inside the device,  

 

  fire or electric shock may result. 

CAUTION

Changes or modifications to this equipment not expressly approved 
by NAD Electronics for compliance could void the user’s authority to 
operate this equipment.

NOTES ON ENVIRONMENTAL PROTECTION

At the end of its useful life, this product must not be disposed 
of with regular household waste but must be returned to a 
collection point for the recycling of electrical and electronic 
equipment. The symbol on the product, user’s manual and 

packaging point this out. 

The materials can be reused in accordance with their markings. Through 
re-use, recycling of raw materials, or other forms of recycling of old 
products, you are making an important contribution to the protection of 
our environment. 

Your local administrative office can advise you of the responsible waste 
disposal point. 

IMPORTANT SAFETY INSTRUCTIONS

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Summary of Contents for VISO HP20

Page 1: ... VISO HP20 ENGLISH Owner s Manual ...

Page 2: ...ds while wearing the headphones and recognize them as needed Long term exposure to loud music may cause permanent hearing damage Do not attempt to modify this product as it could result in personal injury and or product failure If water or other foreign substances permeate inside the device fire or electric shock may result CAUTION Changes or modifications to this equipment not expressly approved ...

Page 3: ...t and hear a more open soundstage We hope you will read through this owner s guide to help assure that you are getting the most out of your new NAD VISO headphones For warranty information contact your local distributor NAD SHALL NOT BE HELD LIABLE FOR ANY TECHNICAL OR USER INTERFACE DISCREPANCIES IN THIS MANUAL THE VISO HP20 OWNER S MANUAL MAY BE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE CHECK OUT T...

Page 4: ...icrophone are supported only by iPod nano 4th generation and later iPod Classic 120GB 160GB iPod Touch 2nd generation and later iPhone 3S iPhone 4 iPhone 5 iPad and iPad mini USING APPLE CONTROL FEATURES FEATURE PROCEDURE Answer or end call Press the centre button once to answer or end a call Decline incoming call Press and hold the centre button for two seconds then release There will be two beep...

Page 5: ...nitor 3 When done listening slowly twist the eartip from the ear canal to break the seal and remove the in ear monitors WARNING Do not insert the eartip deep enough to plug the ear as this could result in permanent damage to the ear canal FITTING TIPS To know whether the eartip is properly sealed within your ear insert the eartip into the ear canal and try listening to ambient noises with no music...

Page 6: ... source Audio source is muted with Apple control feature Press center button of Apple control feature to restore audio Crackling noise or intermittent audio Headphone is not fully inserted or pushed home to the audio source Ensure full connection between headphone and audio source Connection at the audio source or headphone end is damaged Use new headphone If you require service please visit your ...

Page 7: ...ive 16 ohms Transducer type Dynamic driver Transducer size 8mm NAD SHALL NOT BE HELD LIABLE FOR ANY TECHNICAL OR USER INTERFACE DISCREPANCIES IN THIS MANUAL THE NAD VISO HP20 OWNER S MANUAL MAY BE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE CHECK OUT WWW NADELECTRONICS COM FOR THE LATEST VERSION OF THE NAD VISO HP20 OWNER S MANUAL SPECIFICATIONS ...

Page 8: ...ional a division of Lenbrook Industries Limited No part of this publication may be reproduced stored or transmitted in any form without the written permission of NAD Electronics International While every effort has been made to ensure the contents are accurate at the time of publication features and specifications may be subject to change without prior notice NAD VISO HP20 Oct 2014 ...

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