Overview: Main function: Digital premium microscope for iPhone 4 Specification: Magnification: 60X to 100X Power supply: 3x LR1130 button cell batteries (included) Compatibility: Case fits the iPhone 4, iPhone 4S Button: LED light on/off, adjust focus, adjust zoom Package Contents 1 x Microscope 1 x Pouch 1 x Back cover for iPhone 4 / 4S 1 x Cleaning cloth Weight Approx:200g Size Approx:8.5 x 3.2 x 2.1 cm