A shower device having multiple heads and multiple settings that can be selectively set and selectively aimed among various modes, including massaging modes. The plurality of battery subassemblies are operable to be mechanically and electrically connected together to form a battery assembly. A second film is attached to a remaining lower surface of the upper mold and an opposite side surface of the protrusion, the second film having a coupling portion located inside the extension of the first film, wherein the extension is bent upwardly. The processor compares the frequency of vibration of the vibrating structure to data that relates the vibration frequency of the vibrating structure to fatigue damage of the vibrating structure, and controls the indicator based on the comparison. The current source provides a starting current. The armature portion also includes a U-shaped magnet mounting member which is fixed near the upper end of the spring shaft, the U-shaped member including two opposing legs which extend along a substantial part of the length of the spring shaft, away therefrom.