The wide-angle lens allows you to capture a much wider angle of view than is possible using your built-in camera alone (0.67x magnification), while the macro lens allows you to view small objects in extreme detail at a very close range (15-23mm focal length). Twist the lens to remove the wide-angle lens and use the macro lens. Compatible with all iPhone, iPad, Samsung Galaxy and most other mobile devices. Made from high-quality aluminum, multi-coated optical glass with high-grade lens coating. Great for both photos and videos.