Not the best price compared to the previous deal https://www.ozbargain.com.au/node/407063 which has expired.
But still cheap if you want a decent sounding bluetooth earbud with ANC.
There are mixed reviews about this store, and I have not personally used it before, so just be aware of the reviews https://www.productreview.com.au/p/crazy-sales.html
Look just a comment about the headphones, they are alright but the mic which is in piece that will be on your shoulders, makes voice calls almost impossible, in crowded places, since it's just to sensitive, and picks up the train/bus/crowd over your voice!
I have had a pair for about 6 months. During that time I found them to occasionally have issues pairing, up until a couple of weeks ago when they stopped pairing with anything. I did however pay twice this price, and $20 for 6 months might not be so bad.
I bought three 3d pens from here and the shipping was crazy fast (1 day delivery to Melbourne Metro).
In fact, the parcel arrived before I saw the shipping advice email.