User's Manual

32 Health/Safety/Warranty Guide Coolpad TATTOO
published since December 2000. These studies investigated possible associations between the
use of wireless phones and primary brain cancer (glioma, meningioma, acoustic neuroma, other
brain tumors, salivary gland tumors), leukemia, or other types of cancer. None of the studies
demonstrated the existence of any harmful health effects from wireless phone RF exposures.
However, none of the studies can provide absolute findings about long-term exposures since
the average period of phone use in these studies was approximately three years.
4. What kinds of phones are the subjects of this update?
Here the term “wireless phone” refers to handheld wireless phones with built-in antennas, often
called “cell”, “mobile”, or “PCS” phones. These types of wireless phones can expose the user to
measurable Radio Frequency (RF) energy because of the short distance between the phone
and the user’s head. These RF exposures are limited by FCC safety guidelines that were
developed with the advice of the FDA and other federal health and safety agencies. When the
phone is located at greater distances from the user, the exposure to RF is drastically reduced
due to a person's RF exposure rapidly decreasing with increasing distance from the source.