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Since the invention of communicative technology, cell phones have evolved and developed immensely throughout the years. Now in the 21st century; cell phones are sold in masses, and carry several unique functions.

For instance; most people own phones that can take high-quality ph otographs, record short videos, play music, send personalized messages, and download multimedia. Moreover; several families now prefer to discontinue the use of home phones, and instead have each member of the family own individuals cell phones.

Radio Waves and Cell Phones

http://www.youtube.com/watch?v=Jn7oNH2-nqc

http://suite101.com/how-they-work-the-different-uses-and-functions-of-cell-phones-a321201