Verykool S3504 Mystic II official Pictures. Verykool S3504 Mystic II is a Smartphone of verykool. The Verykool S3504 Mystic II Android Smartphone. Announced Aug 2015. Features 3.5″ Display, MT6572M Chipset, 5 MP Primary Camera, 1.3 MP Front Camera, 1200 MAh Battery, 4 GB Storage, 512 MB RAM. Verykool S3504 Mystic II price starts.