the mini audio is aim for china market, not the international market. Both are for under the same company call ibasso
the design and interface look the same as the normal ibasso normal selling in the market as well.
quote from their web
"
Our company has two brands, iBasso for international sale, and Mini-Audio for China Market. We only supply Mini-Audio products to our legal dealer in China and do not allow them to sell Mini-Audio products to other countries. If there is any Mini-Audio products returning from other countries for warranty request, we may reject the request or charge repair fee. Recently, there are some reports about illegal dealer selling Mini-Audio products online. Also, we have not release the D3 in Mini-Audio brand, some illegal dealer is selling Mini-Audio D3 online, but send the buyer D2 Boa insteal. Please be aware of that.
Sincerely
iBasso Audio
Dec, 2008