A device includes a housing, a circuit board disposed inside the housing, and an elastic seat covering one surface on one side of the circuit board, wherein the housing includes a wall having one opening provided on the one side and another opening provided on another side which is other than the one side, the wall extending between the one opening and the another in a direction intersecting in a direction in which the one surface of the circuit board extends, wherein the elastic seat has a flange, and wherein the flange contacts the wall so as to deflect against the wall.