The unit operates on four AA batteries (not supplied) with a life cycle of up to 15û000 flushesûand a manual override is available if needed. The Jollytronic Activator is suitable for new and existing installations with a Wirquin MW2 Flush Valveûmaking it ideal for both commercial and household use. It is quick and easy to installûallowing for a quick upgrade to most toilet suites. The Infra-Red operation ensures effective use by people of all ages and is a good solution for the physically impairedûas it can be operated by breaking the Infra-Red beam with any object or part of the body. By holding a body part over the sensorûthe user can determine the full flush volumeûand the unit will cease to flush once the body part is removed.