An input mouse may include a top button, a first wall rearward of the top button to underlie a palm of a user and a second wall forming an exterior of the input mouse. The first wall is formed from a material composition comprising a first polymer encapsulating thermally conductive particles. The second wall is formed from a thermally conductive material. A solid-state Peltier heat pump has a first face thermally coupled to the first wall and a second face thermally coupled to the second wall.