Keurig coffee maker, usable in the United States. Keurig is the No. 1 capsule coffee & tea machine in the United States. Simply insert a Keurig capsule, add the appropriate amount of water, and press the silver round button on top to enjoy a hot beverage. Comes with the box and instruction manual. Usable in the United States. *Because the power outlet has three prongs, a separate power adapter is required for use in Japan.