Fun Handwashing! Hand Wash Music Box Music plays for 30 seconds, making handwashing fun!! Unlike kitchen timers, the "Hand Wash Music Box" uses a sensor that activates when hands are near, playing music for the time needed to wash hands. Even adults find it difficult to wash their hands properly. While designed and engineered for easy use by children, it can also be used in various locations such as office restrooms and handwashing stations in restaurants!