*Professional Diving Snorkeling Photo Video, Designed and tested to dive to 49ft/15m for 30 minutes. Fully sealed valve body design allows you to swim freely under water. You can enjoy the fun of taking pictures underwater. Fall arrest lanyard to prevent your phone from falling when diving.This phone case can provide a full body protective no matter you are swimming, surfing, fishing, climbing, drifting, cycling, hiking, camping, skiing and snorkeling. Q: how does a submersible work underwater? A: The universal diving box is equipped with a control panel, which is connected with the height adjustment button inside. Once the shutter button on the underwater camera box is pressed, the height adjustment button is also pressed, you can take photos or video. Q: What should I do before using it? A: Please install correctly according to the instructions.Before diving, please turn it to the state of photographing or videotaping. Before use, please pay attention to the manual and whether the model of the product matches your mobile phone！！！！！！ Focus on information Question: Dust proof like predecessor? Whats the drop rating? Answer: Dust proof yes and as far as drop rating not sure of exact specs but we dropped our phone off of a pier and it was over 20 ft and phone was fine Question: Can it be used if the phone has a tempered screen protector? Answer: It's best not to have a tempered screen protector on the phone Universal Compatibility： As shown in the picture below Package: 1 x Cleaning Cloth1 x Wrist Lanyard1 x Diving Case1 x Manual Key Outstanding Features: Size: 7.28*4.19*1.64inch Weight：0.77 PoundMaterials: PC, ABS Built in Screen Protector The Screen protection film is made of PET transparent film plus hard material. The bottom transparent film is made of composite material. It is wear-resistant and scratchproof. It can be used without restriction in rain and snow weather or other similar environments. It can isolate dirt, dust, sand storms, and can withstand soil impurities and building dust. Perfect Fit Super easy installation. Precise phone holes, keys and camera position. So it is very easy access to all control buttons, ports, cameras. Therefore, headphones and USB cables ensure the ultimate connection. High-intensity signal is not disturbed. (Note: Have a Camera Tripod Port) 360°Full Body Protection Military Drop Tested provides rugged protection. The durable hard PC case with the function of Anti-Scratch & Anti-dirty & Anti-Shock & Anti-fingerprint. Four strong angle anti-drop, shock absorption design. Two side bumpers provide solid texture, let you have a good friction grip, can effectively prevent the fall of your phone. Screen and Camera cut out is deep, protect your phone’s camera from scratches and keep your flash fully function. Long life for your phone. Let you enjoy the outdoors - don't let rain, water, snow, stains, sea water, dust or sand get in your way! Note: 1.The touch screen is not very sensitive and is not suitable for daily use. 2.Due to the water pressure, it is difficult for the touch screen to switch mode between photos and videos. You must set it before entering the water. 3.Make sure the phone is fully charged because the camera must always be on underwater.