Compatible with iPhone series, Blackberry, and many other smart phones of similar size. Floats with provided floating lanyard (check buoyancy before use). Waterproof to 19 feet. Sand proof. Allows touchscreens to be fully functional and allows you to communicate while the phone is in the case. Photo/video above and under water. Protection from snow and rain. Comes with adjustable neck lanyard and floating yellow lanyard. Inner dimension: 4.55" x 2.56" x .55".