Note: 1. Please carefully read the manual installation and correct guidance; 2. Please water test an empty case prior to inserting phone, ensure no leakage(general water test time for 10 minutes), install mobile phone again; 3. Please properly installed protective case and make sure charge port door seal and O-ring are tightly sealed; 4. And be certain to have ringer switch in the on position when first installing phone for proper fit and functionality; 5. After the installation of the waterproof case, such as fell to the ground, please inspect case for damage and ensure all seams are closed; 6. Please note that don"t let the case fell from too high place and cause an damage Features: 1. Suitable for iphone 4 4s 2. Water Proof: Submergible to 6.6" (2 cm) for up to 30 minutes 3. Dirt Proof: Sealed from dirt & dust particles - meets or exceeds IP-69 Ingress Protection Rating 4. Snow Proof: Sealed from snow & ice - meets or exceeds IP-69 Ingress Protection Rating 5. Shock Proof: Withstands drops from 6.6 feet / 2 m - meets or exceeds MIL STD 810F-517 6. Function: Restriction-free access to all functions, buttons, controls and ports 7. Design: The thinnest, lightest, thoughest, most functional all- protective phone case available 8. Optics: Crystal Clear double AR-coated optical-glass lens for distortion-free photos and videos 9. Product size (L x W x H): 13.2 x 7.0 x 1.5 (cm) Package Contents: 3 x Case 3 x Headphone Adapter 3 x Cleaning Cloth 3 x Triangular Pry Tool 1 x 3D Screen Protectors for iphone 4 4s