[Elecraft] Heil ProSet IC for KX3?

[Chris Johnson]

I purchased the ProSet iC headset from Elecraft for my KX3 and was wondering if the iC element is needed.  I want to buy another ProSet for my second KX3, but was unsure about the necessity and Pro vs Cons of the two versions for the KX3 or the sound quality in general.   It is a gift to my son for passing his General at age 10!

Thank you for helping me decipher this!

-Chris