Safety Instructions: Before each use, you must thoroughly test and check the condition of the case and accessories for any damage and make sure the locking system is functioning properly. To test the product, insert a piece of paper into the case and place underwater, shake and/or press while underwater. If the paper gets wet, please exchange the product. After use, please wipe and dry before re-opening the case and make sure the product is hanging upside down when removing the phone to prevent water from entering the case. Do not expose under sun for prolonged time and avoid strong impacts and sharp objects to prevent damage. Once the user has tested the condition of the product before each use successfully, we are not responsible for any damage caused by the user.