【Compatible Cell Phone Models】: This diving case is compatible with most mobile phones on the market. The new design abandons the old mechanical camera design and instead uses the Bluetooth camera solution, which makes the third generation dive case suitable for most smartphones in the market, such as: Samsung, Apple, Huawei, Xiaomi, OPPO, vivo and other brands. (To note: This diving case is not suitable for mobile phones with a screen size larger than 6.9 inches) [Dive depth]: At present, we have upgraded the material density to support 15m/50ft water depth, which meets the needs of most diving enthusiasts. There will be water pressure during the dive. It is recommended to activate the photo or photo function in advance before diving. 【Professional Equipment】: The buckle is made of metal material, which is more reliable and durable, and has better sealing performance. Each product is tested for water resistance before leaving the factory. For absolute safety, you can perform a leak test. Specific steps are provided in the product . 【Professional Service】: We designed a universal interface for this underwater hull. It can be installed on professional equipment such as selfie sticks and tripods. We also specially prepared a lanyard for you, convenient to carry and take photos. After the mobile phone is installed, please open the ventilation hole, press the diving shell screen to vent, and install the screws to make the diving screen have higher touch sensitivity. We only sell diving phone cases, not other items in the picture. Due to the differences between different monitors, the pictures may not reflect the actual color of the item. Due to manual measurement, please allow slight size errors.