Cassette and Video Corner - On This Day in 1877: (April 1) Thomas Edison devises a telephone design that becomes the basis for his later claim to the invention of the microphone.
![Invention Cell Wholesale on Twitter: "Selling Dual Wireless Professional Microphones TT-850, will reach upto 50Ft! Start Placing your Orders Now by clicking the link:https://t.co/5SQhQCydKV #microphones #microphone #mic #bronx #newyork #accessories ... Invention Cell Wholesale on Twitter: "Selling Dual Wireless Professional Microphones TT-850, will reach upto 50Ft! Start Placing your Orders Now by clicking the link:https://t.co/5SQhQCydKV #microphones #microphone #mic #bronx #newyork #accessories ...](https://pbs.twimg.com/media/E0yWFqqXIAIsOYF.jpg)
Invention Cell Wholesale on Twitter: "Selling Dual Wireless Professional Microphones TT-850, will reach upto 50Ft! Start Placing your Orders Now by clicking the link:https://t.co/5SQhQCydKV #microphones #microphone #mic #bronx #newyork #accessories ...
![Music History Monday: Microphones | Robert Greenberg | Speaker, Composer, Author, Professor, Historian Music History Monday: Microphones | Robert Greenberg | Speaker, Composer, Author, Professor, Historian](https://d3fr1q02b1tb0i.cloudfront.net/wp-content/uploads/2018/04/30070313/Frank-Sinatra-poses-for-a-portrait-with-a-vintage-microphone-in-1942.jpg)