• IPX8 - level waterproof • Sensitive touch screen with 0 delay • 100% PVC, fully transparent and high - definition • Safety airbag to prevent sinking Small size, large capacity Fits 99% of models #Compatible with mobile phones of 7.0 inches and below, applicable to many models such as Apple, Huawei, Xiaomi, OPPO, and Samsung The demonstration model is: iPhone 14 Pro Max 1. Open the waterproof bag and then put the mobile phone in. 2. Strictly press down each sealing strip to ensure the sealed state. 3. Fold down along each sealing line. 4. Align and flatten the upper and lower buckles to ensure the upper cover does not rebound.