BergHOFF Portable Induction Stove Power on/off button, Only use with induction cookware! Function button toggles between power/temp/cook/timer (where applicable) Power Cook 1-10 (260w-1600w) 120V 60 HZ Temp cook 150F-450F, Timer, Arrow up raises TEMP or POWER, increses time. Arrow down lowers TEMP or POWER decreases time. Cooking top ceramic glass.