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Please listen safely
For traffic safety, do not use vPulse headphones while driving or cycling. Do not wear vPulse headphones while
operating machinery. Adhere to local laws regarding the use of headphones.
Listening with vPulse headphones at high volumes may affect your hearing, including causing permanent damage.
Ringing in your ears or other discomfort can indicate that the volume is too high.
Hearing health is critical to enjoyment and the quality of life. Protect your hearing by listening with your vPulse
headphones in a responsible manner that protects your long term hearing health. Velodyne Acoustics, Inc. is not
responsible for hearing loss or damage resulting from the use of this product.
Sound
Normal breathing
Whisper
Normal conversation
Vacuum cleaner, hair
dryer
Average city traffic
Lawnmower, food
blender
Garbage truck, cement
mixer
Stereos (over 100 watts),
thunderclap (near)
Jet engines (near)
*Information obtained from http://www.nidcd.nih.gov/health/education/teachers/pages/common_sounds.aspx
All manuals and user guides at all-guides.com
Noise Level (dB)
Effect
10
Just audible
30
Very quiet
50-65
Comfortable hearing levels are under 60 dB
70
Intrusive; interferes with telephone conversation
80
Annoying; interferes with conversation; constant exposure
may cause damage
85-90
85 dB is the level at which hearing damage (8 hrs) begins
100
No more than 15 minutes of unprotected exposure recom-
mended for sounds between 90-100 dB
110-125
Regular exposure to sound over 100 dB of more than one
minute risks permanent hearing loss
140
Threshold of pain begins around 125 dB
vPulse user guide
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