Battery (electricity)

src: www.exploratorium.edu An electric battery is a device consisting of one or more electrochemical cells with external connections provid...

Transmitter

src: fthmb.tqn.com In electronics and telecommunications a transmitter or radio transmitter is an electronic device which produces radio w...

IPhone

src: cdn2.macworld.co.uk iPhone ( EYE -fohn ) is a line of smartphones designed and marketed by Apple Inc. They run Apple's iOS mobile...