1) Go to aliexpress.com
2) Search for "mini pro hearing"
3) That's it! Find the lowest price+shipping ($159 Nov-2016)
Price has fluctuated wildly ($159, $299, $166)
Don't use Google to search for this. You will get different/higher priced results. Go directly to aliexpress.com and use the search inside aliexpress.com! Search for "mini pro hearing" not "mini pro"!
If you are shipping to a non-USA country then I don't know if your border/customs will hold or flag this shipment?
Asof March-2017 one Aliexpress seller is selling the mini Pro with a Free Upgrade Gimmick. This is actually a downgrade disguised as an upgrade because you will get downgraded to a USB Hi-Pro (USB 1.1).