A mbile phone also known as "head phone,cell phone or cellular phone". Now-a-days mobile phones are as useful as one of the part of the body but in earlier days when mobile phones are not famous & they were looking like shown in below image.

The first mobile phone was demonstrated by Dr. Martin cooper in 1973 & that handset is weighing around 1kg.  And the view of this phone is as in the photo.

Dr. Martin cooper  is an American former Motorola vice president and division manager handle the team to make the mobile phone for us.