ABOUT - Simple to use, Guinness NITROSURGE cans and the NITROSURGE Device* puts the craft of draught in your hands. WHAT IT IS - NITROSURGE is a complete, portable pouring experience that uses innovative ultrasonic technology so you can enjoy a beautifully smooth Guinness wherever you are. HOW IT WORKS - The rechargeable NITROSURGE Device uses innovative ultrasonic technology so you can enjoy a beautifully smooth Guinness wherever you are. The device is waterproof for easy cleaning.The Guinness NITROSURGE Device is your complete pouring experience, using innovative technology to put you in control of the iconic Guinness two part pour. Working exclusively with Guinness NITROSURGE cans, it delivers the satisfyingly smooth Guinness you enjoy, at home.