Seems to be on sale from a regular price of AUD$96.63. Probably some of the cheapest earbuds with ANC out there (from brands with decent reputation).
For a description check the website.
I personally own 4 pairs of QCY wireless bluetooth earbuds (2 different models). They are not this model, but the ones I own are all very good - high quality sound and comfy to wear.
TIMFP - hopefully useful for somebody.
Edit: base price 74.40 - $2.57 store coupon + GST $7.19 = $79.02
Add on $7.44 GST, and take off $2.57 store coupon = $79.28