This quick-release, fully concealed underwater case is designed specifically for the Insta360 X4 camera, providing professional-grade underwater shooting protection. Made with robust materials and a high-precision sealing structure, the case is truly waterproof to a depth of 50 meters, ensuring stable performance under underwater pressure whether snorkeling or diving. The lens features an optically optimized design for 360° all-around shooting with no blind spots, ensuring a complete and unobstructed image. Two built-in anti-fog filters continuously absorb moisture, ensuring a clear, fog-free lens. The case supports a magnetic quick-release system, compatible with Ace Pro and Ace series quick-release mounts, making installation simple and efficient. A 1/4" threaded connector on the bottom allows for direct connection of a selfie stick, allowing the selfie stick to remain completely invisible during shooting. The case features a four-point safety lock design, ensuring easy and secure opening and closing. A silicone lens protector is included for easy storage and to protect the lens, extending its lifespan. An anti-loss lanyard hole adds peace of mind for underwater use. Whether for professional underwater photography or everyday underwater recording, this diving case provides you with a reliable and convenient shooting experience.