Thanks to @mikemeelec, he has just given me a coupon to share for the M6 Pro headphone. Once you add delivery to the purchase and apply the code, the total is equivalent to $64 AUD (at the time coupon is published).
I've owned three of the M6 models and has given one out as a gift to a friend. I play in a band and use them as my IEM earphone and it works like a charm. The PRO model is an improvement to an already great IEM and at a very affordable price. I haven't tried it yet (just placed the order), but I've read many good reviews about it.. placing them as good or even better than the expensive IEM earphone.
Again thanks to Mike, one of the best customer service I've seen in a while!