Looking for two clip-on microphones (Audiophiles, help)...

[idNut]

I found some cheesy ones (Benwin) on eBay because I'm looking to replace my school's POS's that they have for the broadcast class. These are a possibility but I'm not sure if they'd hook into the soundboard we have (also a POS). The jacks are big and like the size of a quarter where you input. It's like there is the normal cord from the input that goes onto a converter then into the soundboard. Anyone know if those microphones on eBay would work in that jack? Any help is appreciated.

 

[idNut]

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[idNut]