The Zyliss Frother easily froths milk for cappuccinos, lattes or shakes. Heat small amount of milk and insert frother to the bottom of cup. Switch frother on and watch as milk expands 3 times in 30 seconds! Uses 2 x AA batteries (not included). Focusing on functionality, durability, design, cleanliness and safety, Zyliss has relied upon a heritage of excellence that began in Switzerland over 60 years ago. Building on this time-held tradition, the company has advanced to produce and distribute kitchen equipment that is world-renowned. Zyliss has pioneered the design of more than 200 kitchen essentials, with quality and engineering that cannot be duplicated.