Reference information

• A message from the FDA

Consumer Update on Wireless Phones

U.S. Food and Drug Administration

1. Do wireless phones pose a health hazard?

The available scientific evidence does not show that any health problems are associated with using wireless phones. There is no proof, however, that wireless phones are absolutely safe. Wireless phones emit low levels of radio frequency energy (RF) in the microwave range while being used. They also emit very low levels of RF when in the stand-by mode. Whereas high levels of RF can produce health effects (by heating tissue), exposure to low level RF that does not produce heating effects causes no known adverse health effects. Many studies of low level RF exposures have not found any biological effects. Some studies have suggested that some biological effects may occur, but such findings have not been confirmed by additional research. In some cases, other researchers have had difficulty in reproducing those studies, or in determining the reasons for inconsistent results.

2. What is FDA's role concerning the safety of wireless phones?

Under the law, FDA does not review the safety of radiation-emitting consumer products such as wireless phones before they can be sold, as it does with new drugs or medical devices. However, the agency has authority to take action if wireless phones are shown to emit radio frequency energy (RF) at a level that is hazardous to the user. In such a case, FDA could require the manufacturers of wireless phones to notify users of the health hazard and to repair, replace or recall the phones so that the hazard no longer exists.

Although the existing scientific data do not justify FDA regulatory actions, FDA has urged the wireless phone industry to take a number of steps, including the following:

Support needed research into possible biological effects of RF of the type emitted by wireless phones;

Design wireless phones in a way that minimizes any RF exposure to the user that is not necessary for device function; and

Cooperate in providing users of wireless phones with the best possible information on possible effects of wireless phone use on human health.

FDA belongs to an interagency working group of the federal agencies that have responsibility for different aspects of RF safety to ensure coordinated efforts at the federal level. The following agencies belong to this working group:

National Institute for Occupational Safety and Health

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Environmental Protection Agency

Federal Communications Commission

Occupational Safety and Health Administration

National Telecommunications and Information Administration

The National Institutes of Health participates in some interagency working group activities, as well.

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Nokia 3390 manual Message from the FDA, What is FDAs role concerning the safety of wireless phones?, 121

3390 specifications

The Nokia 3390, introduced in 1999, is a classic mobile phone that symbolizes the peak of the early mobile phone era. It took the market by storm with its robust design and a range of appealing features. As part of the Nokia 3300 series, the 3390 was designed with a focus on durability and user-friendliness, which made it a favorite among consumers during its time.

One of the standout characteristics of the Nokia 3390 is its compact and lightweight design. Weighing just 133 grams, it easily fit into pockets and purses, making it extremely portable. Its dimensions of 113 x 48 x 22 mm offered a comfortable hold and an ergonomic feel. The device was known for its resilience, featuring a strong plastic casing that could withstand everyday wear and tear.

The Nokia 3390 featured a monochrome LCD display with a resolution of 48 x 84 pixels. While this may seem primitive by today’s standards, it was perfectly suitable at the time for displaying text messages and simple menus. It also supported a variety of customizable wallpapers and ringtones, allowing users to personalize their phones to match their style.

One of the key technologies integrated into the 3390 was its GSM connectivity, which enabled users to make and receive calls and send SMS texts with ease. The model was equipped with a long-lasting battery, offering up to 5 hours of talk time and 300 hours of standby time, making it an excellent choice for on-the-go communication.

In terms of functionality, the Nokia 3390 came with several built-in features such as the iconic Snake game, which captured the attention of millions and became a cultural phenomenon. Additionally, the phone supported messaging functions, including SMS, enabling users to communicate rapidly and conveniently.

The user interface was straightforward, characterized by Nokia's signature four-way navigation key, which simplified browsing through menus and settings. Additionally, the 3390 featured a remarkable ringtone composer, allowing users to create custom ringtones, enhancing the personalization aspect of the device.

Overall, the Nokia 3390 represents a significant chapter in mobile phone history. Its combination of durable design, user-friendly features, and impressive battery life made it a beloved choice for many, paving the way for future mobile innovations while remaining a nostalgic symbol for mobile enthusiasts.