Prestigio MultiPhone 3540 Duo official Pictures. Prestigio MultiPhone 3540 Duo is a Smartphone of prestigio. The Prestigio MultiPhone 3540 Duo Android Smartphone. Announced 2013. Features 3.5″ Display, MT6575 Chipset, 3.15 MP Primary Camera, 2000 MAh Battery, 4 GB Storage, 512 MB RAM. Prestigio MultiPhone 3540 Duo price starts.