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Samsung SGH-X640 manual Health and safety information, Precautions when using batteries

Models: SGH-X640

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SAR tests are conducted using standard operating positions with the phone transmitting at its highest certified power level in all tested frequency bands.

Although the SAR is determined at the highest certified power level, the actual SAR level of the phone while operating can be well below the maximum value. This is because the phone is designed to operate at multiple power levels so as to use only the power required to reach the network. In general, the closer you are to a base station, the lower the power output of the phone.

Before a new model phone is available for sale to the public, compliance with the European R&TTE Directive must be shown. This directive includes as one of its essential requirements the protection of the health and safety of the user and any other person.

*The SAR limit for mobile phones used by the public is 2.0 watts/kilogram (W/kg) averaged over ten grams of body tis- sue. The limit incorporates a substantial margin of safety to give additional protection for the public and to account for any variations in measurements. The SAR values may vary, depending on national reporting requirements and the network band.

Precautions when using batteries

•Never use a charger or battery that is damaged in any way.

•Use the battery only for its intended purpose.

•If you use the phone near the network’s base station, it uses less power. Talk and standby time are greatly affected by the signal strength on the cellular network and the parameters set by the network operator.

•Battery charging time depends on the remaining battery charge, the type of battery, and the charger used. The battery can be charged and discharged hundreds of times, but it will gradually wear out. When the operation time is noticeably shorter than normal, it is time to buy a new battery.

•If left unused, a fully charged battery will discharge itself over time.

•Use only Samsung-approved batteries, and recharge your battery only with Samsung-approved chargers. Disconnect the charger from the power source when it is not in use. Do not leave the battery connected to a charger for more than a week, since overcharging may shorten its life.

Health and safety information

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Samsung SGH-X640 manual Health and safety information, Precautions when using batteries
Page 63 Page 65

SGH-X640 specifications

The Samsung SGH-X640 is a feature-rich mobile phone that was launched in the mid-2000s, showcasing Samsung's commitment to innovation in the telecommunications sector. This sleek and stylish device was designed to cater to the growing demand for advanced mobile features while still being user-friendly.

One of the standout characteristics of the SGH-X640 is its compact and lightweight design, making it highly portable and convenient for everyday use. Weighing just 90 grams and measuring 86 x 44 x 21 mm, this phone easily fits in the palm of your hand or pocket. Its clamshell design not only adds a touch of elegance but also protects the screen from scratches and damage when not in use.

The SGH-X640 comes equipped with a bright 128 x 160 pixel display that supports 65,536 colors, providing vibrant visuals for images, graphics, and menus. This clarity allows users to enjoy multimedia content such as photos and videos, further enhanced by its integrated camera, which features a 1.3-megapixel resolution. This camera allows for decent photo-taking capabilities, perfect for capturing special moments on the go.

In terms of connectivity, the SGH-X640 supports GPRS Class 10, allowing for relatively fast internet browsing and data transfer capabilities for its time. The phone features a WAP 2.0 browser for accessing mobile content, enabling users to stay connected to the web wherever they go. Bluetooth technology is also included, facilitating easy wireless sharing of files and media with other compatible devices.

The device boasts an impressive battery life with a standard Lithium-ion battery, offering talk time of up to 5 hours and standby time of approximately 200 hours. This lengthy battery performance is ideal for users who rely on their mobile phone throughout the day without the constant worry of recharging.

Additionally, the SGH-X640 supports various multimedia formats, making it a suitable companion for music and video playback. Users can easily download ringtones and applications, personalizing their devices to suit their preferences.

Overall, the Samsung SGH-X640 exemplifies the combination of style, functionality, and technology that defined the early 2000s mobile phone market. Its thoughtful design and impressive features make it a memorable entry in Samsung's legacy as a leading mobile manufacturer.