report text

REPORT

EARPHONE (HEADSET)

 

            Do you know what an earphone or a headset is ?. It is combination by headphone and microphone and it was used for hear voice and talk by tool communication or by computer.

            Firstly  earphone was created at 1910 by Nathaniel Baldwin, student of Standford University. At the same time many people did not know the invention and he was nt interested to production the earphone. Then he sold his invention to United State and then the United State production 100 earphone for war necessety.

            At 1970 earphone used by pilot because it was so comfortable. Now, many people use the earphonen to listen music from his mobile phone and without worry to disturbing another people with the volume. Moreover, earphones have many types and the form was not like before, now earphones have modern form with many colour.