Mask for cell phone which prints real photos

These days, at the market, one completely unusual smart phone mask appeared. Namely, the mask prints real photos.
Prynt case is a mask for mobile phones which print photos immediately similar as old-fashioned polaroid.
Apart from the fact that the mask provide shape and design of retro camera, it also prints photos on paper which it has in itself.
It does not take ink – you simply install mask on a smart phone and you are ready to use completely new method of photography.
Price of the mask at the moment is USD 150 and it can be used on iPhone" 5, 5c, 5s, 6 and 6s, "Galaxys" S4 and S5.