When space and portability are important, choose the Keurig (R) K15 Coffee Maker. It brews 6 oz., 8 oz., and 10 oz. in under two minutes. The Keurig (R) K15 Coffee Maker is a compact personal coffee maker with 6, 8, and 10 oz. K-Cup (R) pod brew sizes. Portable and great for small spaces, the Keurig (R) K15 makes single cup brewing fast, convenient and simple. To operate, simply add fresh water into the single-use reservoir, choose your favorite K-Cup (R) pod, brew, and enjoy!