Is Z3 compatible with any 3 button in-line remote?

[Luke Flegg]

Hi, I have a Z3 and am looking for some decent (£60-£110) earphones with a 3 button in-line remote control.
I was looking at the Nocs NS500 but it says on their webpage that the Z3 doesn't support 3 button remote controls with 4 poles...

am I stuck with single button in-line remote controls?
Thanks