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

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.

FDA shares regulatory responsibilities for wireless phones with the Federal Communications Commission (FCC). All phones that are sold in the United States must comply with FCC safety guidelines that limit RF exposure. FCC relies on FDA and other health agencies for safety questions about wireless phones.

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Motorola V400 manual National Telecommunications and Information Administration

V400 specifications

The Motorola V400 is a notable mobile phone that emerged in the early 2000s, capturing the attention of consumers with its distinctive design and features. This clamshell phone, which hit the market around 2003, is celebrated for its compact form factor and user-friendly interface.

One of the standout features of the Motorola V400 is its dual screen setup, which includes an external monochrome display and an internal color screen. The external screen serves to display incoming call notifications, text messages, and the time, allowing users to interact with their phone without fully opening it. The internal display features a vibrant 176 x 220 pixel resolution, providing clear visuals and supporting a wide array of menu options.

Powered by advanced GSM technology, the V400 supports both voice calls and text messaging, elevating communication in a way that was innovative for its time. The phone is equipped with a 1.2-megapixel camera, allowing users to capture memories on the go, which was a novel feature for mobile devices of that era. The camera also includes basic video recording capabilities, enhancing its functionality.

In terms of design, the Motorola V400 boasts a sleek and stylish look, available in various colors to suit personal tastes. Its ergonomic shape and solid build quality make it comfortable to hold and use daily. The phone's keypad is designed for ease of use, with well-spaced buttons that provide tactile feedback, facilitating efficient text input and navigation.

The V400 offers various connectivity options, including Bluetooth, allowing users to connect wirelessly to other compatible devices, such as headsets and computers. The device also supports polyphonic ringtones and MIDI files, enabling users to customize their auditory experience.

Battery life is another area where the Motorola V400 excels. With a talk time of up to several hours and an impressive standby time, users can rely on this handset for extended use without frequent recharging.

With its blend of style, technology, and practicality, the Motorola V400 has left a lasting impact in the mobile phone industry, marking a time when mobile communication began to evolve rapidly, paving the way for the smartphones we know today. Its combination of features and user-friendly design continues to be remembered fondly by those who experienced its functionality, representing a significant milestone in mobile technology.