1. The case is specifically designed for the Insta360 X4 action camera, making it ideal for diving, snorkeling, and other underwater activities. It effectively protects your camera from damage and scratches, ensuring strong and performance. 2. The housing features a symmetrical locking mechanism, providing reliable structural integrity. The shell is thicker and more robust, resistant to deformation. Made from permeability, corrosionresistant PC material, it supports diving and offers fullaround protection for your camera and lens, preventing scratches and abrasions. 3. The lens is crafted from tempered optical glass with a light transmittance of approximately 92%. After AR coating, the transmittance increases to over 98%. Additionally, a coating is applied, achieving a water droplet angle of 115 degrees to ensure no water droplets remain on the lens surface, avoiding any impact on shooting quality. 4. The 50M underwater clear shooting HD lens delivers light transmission, maintaining sharp and realistic imaging even at depths of 50 meters without compromising the shooting effect.