Washable:Easy to disassemble and clean,the upper part is electronic,cannot be washed,the bottom part is Washable and can treated high temperature Compatibility:It is compatible with canned beers  for party, weeding, feast, bar, pubs, KTV and home. Easy to operate:Just by one click, it is very easy to operate. A and silky foam can be tasted in several seconds. Ultrasonic design:Ultrasonic vibration 40000 times / S high frequency ultrasonic, stimulate , beer is softer. Battery powered:Working under ultrasonic vibration with two AAA batteries(not included) Colour: black Material: plastic Package Contents: 3 x Canner beer foamer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.