spa control system: 1.CE.FCC,ROHS EUROPE and USA STANDARD. 2.110V/ ... cleaning function.7,24-hour clock display and setting function.8,With all the settings down memory parameters.9,Fahrenheit and ... .12,Board computer function key lock.13,Three-phase or single phase, optional 110-120VAC or 220-240VAC.14,When the ... .0~108.0MHz 2) Maximum Output Power 20W 3) Speaker 8Ωdamp proof speaker spa control system