PROFESSIONAL MATERIALS AND CERTIFICATION:Polycarbonate, ABS Plastic, Clear plate galss, EPDM rubber. High quality world class standard Manufactory certificated: ISO9001 and CES and IPx8 degrees. | WIDE ANGLE LENS:Wide Angle Lens can Expand the field of view for breathtaking wide-angle photography.Which can be attached/ detached when needed. | BUILT-IN FILTER: Red and magenta diving filter enhances colors and improves contrast in various underwater video and photography conditions. | 195FT WATERPROOF DEPTH: IPX8,Maximum water resistant 60 meters. This Apple phone case allows your phone to take photos or videos 60 meters under water, which is suitable for underwater sports such as diving, surfing, snorkeling, etc. | WIDELY USE ENVIRONMENT:Ideal for diving, surfing, snorkeling, skiing, kayaking, yacht or other outdoor activities. Also suitable for rainy, snowy and other extreme environment.