The first radio receiver was
introduced by Alexander Popov. Radio has a great history. Radio is a part of mass
media that worth using. During the war it was used for secret messages. Then
radio was used for broadcasting news and music, shows, dramas, and other. Nowadays
we use it mainly for listening to music and entertaining. There are a great
number of different radios with various programs, for example, business news,
games, interesting talks. Also it is the good opportunity for advertise
something. Many people prefer listen to the radio in a car especially during
the trip.