How to Use: Maximum 40m/130ft depth waterproof, please be sure to empty the shell into the water when using it for the first time, make sure the waterproof shell will not enter the water and then install it into the water, the knob lock design, with five physical buttons including the left and right mode switch button, the power button , Shooting button, camera front and rear lens switching button. Specification: Item Type: Mobile Phone Waterproof Case Material: ABS, PC Waterproof Depth: Approx. 40m/130ft Package List: 1 x Waterproof Case 1 x Cleaning Cloth 1 x Filter 1 x Sealing Ring 1 x Hand Rope 1 x Manual