[AG-TECH] Echo cancelling mics

[Jason Soohoo]

Greetings all,

I'm sure this question has been asked many many times,
How well do echo cancelling mics work? Is a Vortex or other echo 
cancelling hardware still needed with along those mics?

I'm looking at an AccuMic II and a ClearMic, any thoughts on those?

Any information on hardware or even software related to echo cancelling 
would be great.

Thank you all for you time,

Jason SooHoo