Each Modulet consists of a clapper-style solenoid actuator attached to a length of aluminum extrusion. The hollow square-profile tubing serves two purposes. Firstly, it functions as a resonator for the module’s solenoid actuator. In this role, it amplifies the solenoid’s clapping sound produced upon actuation. Secondly, the extrusion serves as an attachment point for a hanging assembly, allowing the Modulet to be equipped with a wire braid hanger. With this hanger, each modulet may be attached to wire trusses or other mounting systems common in gallery spaces.