All speakers are microphones;

[theCybe 5,000+ posts]

I remembered reading about this, and it came up in conversation.

So I googled, here's a link.

It's neat info for people that didn't already know.

http://www.zyra.org.uk/sp-mic.htm

http://www3.telus.net/chemelec/Projects/Spkr-Mic/Spkr-mic.htm

Click to read more...

 

[Nova_ 10+ year member]

I knew about that about 10 years ago... I thought maybe a set of speakers could be a good microphone...

 

[GO-N DEF 10+ year member]

About 15 years ago, in my ghetto days, I made a head set for a two way radio out of and old pair of head phones. I took the left speaker, put it on a peice of coat hanger that was stratiegically secured to the headphone and wired it so i had a PTT button halfway to the radio.

Very ghetto, but it worked! LOL!!!