[Durable Construction] Made from high-quality PC material, offering superior clarity, pressure resistance, and explosion-proof properties. [Deep Water Protection] Engineered to withstand depths of up to 40 meters, ensuring comprehensive waterproofing for underwater activities. [Secure Sealing] Features a groove-style sealing ring that becomes more secure with increased water pressure, preventing water ingress. [Impact Absorption] Equipped with an internal foam pad to protect the screen from damage due to movement or impact. [Triple-Fold Clasp] Incorporates a three-fold buckle design for a tighter, more reliable seal during use. [Waterproof Buttons] Stainless steel ring-sealed buttons ensure leak-free operation in aquatic environments.Specifications: Material: PC (Polycarbonate) Waterproof Depth: 40 meters Sealing Mechanism: Groove-style sealing ring Internal Protection: Foam pad Closure System: Triple-fold clasp Button Sealing: Stainless steel rings Included Accessories: Active base and short screw Suitable Activities: Diving, surfing, parachuting