This New Thermal Sensor iPhone Case is astonishing! The best way to add colors, style, and fun to your phone skin is by getting this Thermal Sensor phone case. Its thermo chromic quality will amaze you as this phone case changes its color when there's a change in temperature. It creates wonderfully colored prints and patterns by merely touching and holding it with your hands. Not only that, the Thermoplastic polyurethane (TPU) material of this phone case will save your phone from accidental bumps, grease, dirt, and scrapes.