Goodmans GPS165MP3R Instruction Manual page 10

Your hearing is very important to you and to us so please take care when operating this equipment. It is strongly
recommended that you follow the listed guidelines in order to prevent possible damage or loss of hearing.
ESTABLISH A SAFE SOUND LEVEL
Over time your hearing will adapt to continuous loud sounds and will give the impression that the volume has
in fact been reduced. What seems normal to you may in fact be harmful.
To guard against this BEFORE YOUR HEARING ADAPTS set the volume at a low level.
Slowly increase the level until you can hear comfortably and clearly and without distortion.
Damage to your hearing is accumulative and is irreversible.
Any ringing or discomfort in the ears indicates that the volume is too loud.
Once you have established a comfortable listening level, DO NOT INCREASE THE SOUND LEVEL
FURTHER.
The following list of typical sound levels may assist you in recognizing just how loud you have set the volume
level.
DECIBEL
Level dB Example
30dB Quiet library, soft whisper.
40 Living room, fridge freezer bedroom away from traffic.
50 Normal conversation, quiet office, light traffic.
60 Electric sewing machine.
70 Vacuum cleaner, hair dryer, noisy restaurant.
THE FOLLOWING NOISE CAN BE HARMFUL UNDER CONSTANT EXPOSURE
80dB Average city traffic, alarm clock buzzer at 2 feet, food mixer.
90 Motorcycle, heavy goods vehicle, petrol lawn mower.
100 Pneumatic drill, chain saw, garbage truck, discotec / night-club.
120 Rock band concert, thunderclap.
PERMANENT LOSS OF HEARING
140 THRESHOLD OF PAIN Gunshot 2 feet away.
180 Rocket Launching pad.
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