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cancers by the National Cancer Institute is expected to bear on the accuracy and repeatability of these results.1

2Researchers conducted a large battery of laboratory tests to assess the effects of exposure to mobile phone RF on genetic material. These included tests for several kinds of abnormalities, including mutations, chromosomal aberrations, DNA strand breaks, and structural changes in the genetic material of blood cells called lymphocytes. None of the tests showed any effect of the RF except for the micronucleus assay, which detects structural effects on the genetic material. The cells in this assay showed changes after exposure to simulated cell phone radiation, but only after 24 hours of exposure. It is possible that exposing the test cells to radiation for this long resulted in heating. Since this assay is known to be sensitive to heating, heat alone could have caused the abnormalities to occur. The data already in the literature on the response

of the micronucleus assay to RF are conﬂicting. Thus, follow-up research is necessary.2

FDA is currently working with government, industry, and academic groups to ensure the proper follow-up to these industry-funded research ﬁndings. Collaboration with the Cellular Telecommunications Industry Association (CTIA) in particular is expected to lead to FDA providing research recommendations and scientiﬁc oversight of new CTIA- funded research based on such recommendations.

Two other studies of interest have been reported recently in the literature:

1Two groups of 18 people were exposed to simulated mobile phone signals under laboratory conditions while

Information	Additional Health
	and Safety

153 C331 specifications

The Motorola C331, released in the early 2000s, is a classic mobile phone that holds a special place in the hearts of many technology enthusiasts. This device was known for its compact design and user-friendly layout, catering to the needs of the everyday mobile user during its era.

One of the standout features of the Motorola C331 is its lightweight and compact form factor. Weighing in at just 85 grams, it easily fits into a pocket or purse, making it a highly portable choice. The phone boasts a 1.5-inch monochrome LCD display, which, although modest by today’s standards, was efficient for displaying essential information such as the time, battery life, and signal strength.

The C331 was designed with simplicity in mind. It featured a straightforward keypad comprising 12 keys that allowed for easy dialing and text messaging. The intuitive interface facilitated access to basic functions without the clutter of unnecessary features. Durable construction earned it a reputation as a robust phone, capable of withstanding daily wear and tear.

Equipped with a long-lasting battery, the Motorola C331 had a standby time of up to 300 hours and talk time reaching approximately 5 hours. This impressive battery performance was a significant selling point, allowing users to stay connected for extended periods without constant recharging.

The phone supported basic connectivity options, operating on GSM networks, which were widely adopted during that time. The C331 provided the essential calling capabilities, along with SMS texting features, allowing users to communicate easily and efficiently.

Despite its lack of advanced technologies such as cameras or internet connectivity, the Motorola C331 was celebrated for what it did well: reliable performance, efficient communication, and durability. Its simplicity appealed to those who preferred a straightforward phone experience without the distractions of modern smartphones.

Overall, the Motorola C331 remains a nostalgia-inducing example of mobile phone design from a bygone era. It represents a time when phones were primarily tools for communication, emphasizing practicality over features. Its legacy continues to inspire appreciation for the foundational technologies that paved the way for today’s sophisticated mobile devices.

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Models: C331

C331 specifications