The mobile phone

Martin Cooper was a pioneer in this technology, it is considered "the father of mobile telephony" by introducing the first radio in 1973, United States, while working for Motorola, but it was not until 1979 when the first trade in Tokyo, Japan by NTT company.

Over the years the movile phones have improved technologically. 

Now there are a lot of trademarks, and almost all the mobile phone have camera. Few mobile phones have bluetooth, the bluetooth serves to pass archives to other mobile phones, there is a similar thing call infrared, its worst than bluetooth. 

Now, there are mobile phones with top, and without it.