USB COFFEE MUG CUP WARMER MILK TEA WATER HEATING ELECTRIC TOUCH PAD TEMPERATURE✅JVG-112(WHITE RING) 1, Products include only heating coasters, other accessories demo in the picture is not included. 2, It can only keep your water warm, can not boiling water. 3, This product only come with a USB cable, and does not include a plug. 4, Please be sure to use a DC5V/2A power plug, otherwise it will affect the heat preservation effect.