Nest Learning Thermostat 3rd Gen in Copper (2-Pack)Proven to save energy, the Nest Learning Thermostat in a copper finish is more beautiful than ever, redesigned with a thinner, sleeker design and bigger, sharper display. It saves on average 10 to 12 percent on heating bills and 15 percent on cooling bills, which means it can pay for itself in less than two years. Built to last, enjoy it this ENERGY STAR certified thermostat's automatic programming and remote control by linking it to your smartphone