Apexel Universal Clamp 63x Zoom Mini Microscope Micro Lens with LED & UV for Apple iPhone 6 5S 5C 5 Samsung S5 S4 S3 Note 4 2 Note 3 HTC Smartphones Compact design provides 63x magnification Illuminated by LED which provides enough light in any dim conditions Come with hard plastic back holder case, it can be installed on the back case of smartphone It is powered by 3 * LR1130 batteries (included). Great for the observation of stones, coins, stamps, etc.