MAKE A DESCRIPTION OF A GADGET:

Telephone:

It is a telecomunication device that permits two or more users to have a conversation when they are too far away to be heard directly.In 1876 Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice.It is used by everybody and in the past It was used only by wealthy people and it looked like a stone.