A personal care appliance with a flexible circuit board having a first end portion, a second end portion and a flexible bridge between the first end portion and the second end portion. A first rigid circuit board is mounted to the first end portion of the flexible circuit board. A second rigid circuit board is mounted to the second end portion of the flexible circuit board and folded over the first rigid circuit board. At least one electronic component that emits electromagnetic waves is mounted to the first rigid circuit board. A flexible shield is folded over the at least one electronic component.