NIHL
NIHL is a preventable condition caused by both one-time and extended
exposure to excessive decibel (dB) levels. This harm to sensitive inner ear
structures is irreversible and people of all ages can be affected. Damage can
happen in a single event or gradually over time. One-time exposure to an
intense "impulse" sound, such as an explosion, or by continued exposure to
loud sounds over 85 decibels can cause harm. Indicators of NIHL include
hearing loss and tinnitus, a condition of sensing constant ringing, buzzing or
roaring. The NIDCD (National Institute on Deafness and Other Communication
Disorders) offers this simple rule of thumb: avoid sound exposure that is "too
loud, too close or too long." Here are some general references to sound levels
that occur in everyday life: refrigerator humming (45 dB); normal conversation
(60 dB); city traffic (85 dB); motorcycles (95 dB); an MP3 player at full volume
(105 dB); sirens (120 dB); firecrackers (150 dB).
RF EXPOSURE COMPLIANCE
This equipment complies with FCC/ISED radiation exposure limits set forth
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for an uncontrolled environment. End user must follow the specific operating
instructions for satisfying RF exposure compliance. This transmitter must
not be co-located or operating in conjunction with any other antenna or
transmitter.
The portable device is designed to meet the requirements for exposure to
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radio waves established by the ISED. These requirements set a SAR limit of
1.6 W/kg averaged over one gram of tissue. The highest SAR value reported
under this standard during product certification for use when properly worn
on the body.
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