Martin Cooper (born December 26, 1928) invented the first handheld cellular mobile phone (distinct from the car phone) in 1973 and led the team that developed it and brought it to market in 1983. He is considered the "father of the (handheld) cell phone" and is also cited as the first person in history to make a handheld cellular phone call in public. His invention is the cell phone which was 23 cm (9 inches) tall and weighed 1.1 kg (2.5 pounds). It allowed 35 minutes of talk before its battery ran down. Thanks to his invention, our life has improved a lot. Nowaday, the cell phone has been modernized completely .
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