360° All-round Protection: Ensures comprehensive protection from all angles for your device High-definition PC Back Screen: Crafted with excellent workmanship, the plastic is durable, scratch-resistant, and offers full light transmittance Supports Fill Light and Lamp Arm Matching: Transforms your mobile phone into professional underwater photography equipment in seconds Large Lens Window: Designed to fit most smartphones on the market, providing a clear view for underwater photography Internal Space Dimensions: Measures 175mm x 85mm x 8mm. Before purchasing, ensure your smartphone fits into the case by checking these internal dimensions Compatible with 67mm Thread Interface: Easily accommodates a 67mm thread interface, allowing photographers to use it freely underwater Specifications: Material: PC/optical glass/stainless steel/silicone rubber Waterproof depth: 40 meters (130 feet) Waterproof level: IPX8 Waterproof structure: Press-fit O-ring seal Battery specifications: 2 AAA batteries (not included) Applicable temperature: 0-40°C Product size: 212x60x114mm Maximum installed size: 175x85x9mm Product weight: 684g Compatible with: Apple/Huawei/Xiaomi/Oppo/Vivo/Samsung, etc.