Velodyne vTrue - Manuel (Page 3)

Warnings, safety & care
• To reduce the risk of fire or electric shock, do not expose vTrue headphones to rain or moisture,
and do not open or attempt to open the control module, or any part of vTrue headphones.
• Keep out of reach of children. Small parts may be a choking hazard. This product is not intended
for use by children under the age of three.
• Excessive sound pressure from earphones and headphones can cause hearing loss.
• Consult your physician or audiologist if you have problems hearing, excessive wax build-up or any
discomfort after use of vTrue headphones.
• In particularly dry air conditions, mild tingling may be felt on your ears. This is a result of static
electricity accumulated in the body and not a malfunction of vTrue headphones. This effect can be
minimized by wearing clothes made from natural fibers.
• vTrue headphones are assembled in a facility where they could come in contact with chemicals
covered by California’s Proposition 65.
• If any dust or ear wax is inside the ear cup, you may experience a degradation of sound quality.
• Remove vTrue headphones if they cause any discomfort or pain.
• Do not submerge or expose vTrue headphones to water.
• Protect your vTrue headphones in the carrying pouch when not in use.
Please listen safely
For traffic safety, do not use vTrue headphones while driving or cycling. Do not wear vTrue headphones
while operating machinery. Adhere to local laws regarding the use of headphones.
Listening with vTrue 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 vTrue 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 Noise Level (dB) Effect
Normal breathing 10 Just audible
Whisper 30 Very quiet
Normal conversation 50-65 Comfortable hearing levels are under 60 dB
Vacuum cleaner, hair
dryer
70 Intrusive; interferes with telephone conversation
Average city traffic 80 Annoying; interferes with conversation; constant exposure may cause damage
Lawnmower, food
blender
85-90 85 dB is the level at which hearing damage (8 hrs) begins
Garbage truck, cement
mixer
100 No more than 15 minutes of unprotected exposure recommended for sounds between
90-100 dB
Stereos (over 100 watts),
thunderclap (near)
110-125 Regular exposure to sound over 100 dB of more than one minute risks permanent
hearing loss
Jet engines (near) 140 Threshold of pain begins around 125 dB
*Information obtained from http://www.nidcd.nih.gov/health/education/teachers/pages/common_sounds.aspx
vTrue user’s guide
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