An electronic device includes: a housing having one or more interior surfaces; an electronic circuit that is disposed within the housing, that does not directly contact any of the one or more interior surfaces of the housing, and that includes at least one electrical component that consumes electrical power; and a thermally conductive material that surrounds the electronic circuit within the housing, that directly contacts both the at least one electrical component and the one or more interior surfaces of the housing, that absorbs heat from the at least one electrical component, and that transfers heat to the housing.