Answer:
In the most basic form, a cell phone is essentially a two-way radio, consisting of a radio transmitter and a radio receiver. When you chat with your friend on your cell phone, your phone converts your voice into an electrical signal, which is then transmitted via radio waves to the nearest cell tower.
or
cell phones are capable of much more than just sending and receiving phone calls. Mobile phones used in today's world allow users to send and receive text messages, emails, photos and video as well as access the Internet, play games, listen to music, use GPS (Global Positioning Systems) and more.
