... hot water bags in winter 2Rated Voltage 220VAC 3Rated Power]: 50Hz Input Power 600W shape: round Best rechargeable electric hot water bags ... with automatic overheat protection device to adapt to a wide range of sets magnetic therapy, warm hands, heat, warm feet, ... , the fabric sleeve zipper pull heater, exposed socket, connect the power cord, indicator light. About 5 minutes after the light turns off ...