Though it was originally designed to eliminate the limitations of telephone, but gradually cell phone manufacturers come up with models containing many advanced features like MP3 player, camera, video recording facility, and 3D-games. Even you can access the Internet from your cell phone. In fact, the services provided by SMS, MMS and WAP have been popularized by cell phone. It is no wonder then why the use of cell phones has increased many folds in the last couple of years. According to one survey, every eight out of ten people own a cell phone in the USA.

Have you ever wondered how this cell phone works? You can say cell phone is more or less like a sophisticated radio. Cell phone is a full-duplex device which means one frequency is used for talking and another for listening so that both people can talk simultaneously. Earlier first generation mobile technology (1G) was used for Analog model of cell phone and had only 56 channels.

With the advent of second generation mobile technology (2G) the number of channels gradually increased. Now-a-days, a cell phone can communicate on 1,664 channels or more. The range of cell phone depends on its battery or cell power. You can talk hundred miles of your journey if your cell supports that range. The range also depends upon the tower locations. Cell phone tower is a steel pole containing equipments to send and receive the frequency.

Wondering what your cell phone can do for you? Here is the list:

You can store and retrieve information from your cell phone;

You can set of your important appointments and reminders through cell phone;

You can send and receive text, multimedia messages from your cell phone;

You can access internet, send Email through your cell phone;

You can watch movie, play 2D or 3D games through your cell phone;

You can enjoy listening music through the MP3 player of your cell phone;

You can integrate your cell phone with GPRS service facility to download music from internet;

You can share your favourite music among your friends through the Bluetooth technology of your cell phone;

Some models of cell phone also act as a compass guide so show you the exact geographic location (altitude, longitude wise). They come across quite handy especially for people who are on expeditions.

Like any other electronic devices, cell phone also has got its own share of problems. Doctors have warned against use of cell phones over a long time as it can lead to cancer and liver related problem due to the strong radiation emitted from this electronic device. Now research has shown that prolong use of cell phones can result in infertility problem in women.

Scientists have also examined a significant reduction in sperm count among men who use cell phone for longer period. Talking or listening to music for long time can lead to loss of hearing as well. Children should not be allowed to use cell phones much as its radiation can lead to different kind of health hazards.

Certain precautions should be taken while using cell phone. For instance, you should never use your cell phone when there is strong lightening or thundering. Never let your cell phone gets wet and do not use it with wet hands as there is chance of corrosion to the non-repairable internal parts. In case it does get wet, make sure it to be completely dry before switching it on. If you take care of these couple of things your call phone`s longevity will be increased.