Steren WR-801UHF Manual Del Usuario página 7

Used wisely, your new sound equipment will provide a lifetime of fun
and enjoyment. Since hearing damage from loud noise is often
undetectable until it is too late, Steren recommend you avoid prolonged
exposure to excessive noise. This list of sound levels is included for
your protection.
Some common decibel ranges:
Level
30
40
50
60
70
80
The following noises can be dangerous under constant exposure:
Level
90
100
120
140
180
Quiet library, soft whispers
Living room, refrigerator, bedroom away from traffic
Light traffic, normal conversation
Air conditioner at 20ft, sewing machine
Vacuum cleaner, hair dryer, noisy restaurant
Average city traffic, garbage disposals, alarm clock at 2ft
Subway, motorcycle, truck traffic, lawn mower
Garbage truck, chainsaw, pneumatics drill
Rock band concert in front of speakers
Gunshot blast, jet plane
ENGLISH-07
Example
Example
Rocket launching pad