Unreleased Air Max 2009s?

Not sure if this would be the correct forum for these questions, but I figured since the AM 2009 model is nearly 10 years old it would be considered a retro shoe now. Any-who, recently several color ways of the AM 2009 have been popping up at ROSS department stores. Mind you, ROSS sells legit items, just like Marshalls or TJ Maxx, just at a discounted price. These "new" color ways never released at major shoe stores, at least in the US, until recently at ROSS. The question stirring up is, are these unreleased samples? Or models released overseas and not in the US? There is one feature all of these do not have that the AM 2009's I own, and have encountered have. The Nike+ feature isn't on/in the shoes. Under the insole there is no indention for the nike+ chip, and on the bottom of the shoe the nike decal doesn't have the "+" beside the swoosh like on other models. Instead the insole has the "Fitsole 2" branding. All of this leads me to believe these pairs are legitimate but just weren't made with the Nike+ feature, and instead a more comfortable insole???? I've provided several listings across eBay of the shoes as well as pictures to assist with my questions. 

I searched the item number of a pair of the shoes (volt pair) and it came up with this website. I'm unsure of what language or country it is, but they have several shoes and items that I have seen in the US which to me confirms authenticity as well.  -   http://www.clickonero.com.mx/productos/34891/Tenis/Nike/AirMax2009?idcampaign=712&idtype=1

eBay listings

http://www.ebay.com/itm/New-Mens-Ni...269?pt=LH_DefaultDomain_0&hash=item2801654e6d

http://www.ebay.com/itm/New-Mens-NI...t=LH_DefaultDomain_0&var=&hash=item25a789c4f6

http://www.ebay.com/itm/New-NIKE-AI...446?pt=LH_DefaultDomain_0&hash=item3f4dcc39e6

Here are some pictures, regarding the questions I have...

I bought 2 pairs off eBay because no Ross by me , love all these color ways and no idea what they are and why they didn't release but happy Ross got them

Agreed! I like all of these colorways releasing, just curious of why they have slight differences is all