What was the first wireless device?

“The world’s first wireless telephone conversation occurred in 1880, when Alexander Graham Bell and Charles Sumner Tainter invented and patented the photophone , a telephone that conducted audio conversations wirelessly over modulated light beams (which are narrow projections of electromagnetic waves).”

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Who is known as father of radio?

Bose was among the pioneers of research in radio technology and demonstrated, for the first time ever, wireless communication using radio waves, almost two years before Italian physicist Guglielmo Marconi , who is credited for developing the first proper system of radio communication in 1897.

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