The Baby Brezza Formula Pro uses worldwide patent-pending technology to measure and mix water and powdered formula to the perfect temperature (about 98 degrees) and consistency. With the push of a button, you can prepare a bottle within seconds with no clumps or air bubbles. The water and formula powder are stored in airtight compartments right in the machine, so it's always ready when your baby gets hungry. The Baby Brezza Formula Pro works with all bottle sizes and all formula brands and types. You can also choose the amount of formula you want to make - 2, 4, 6, 8 or 10 ounces. The easiest, most efficient way to prepare baby's bottles is now right at your fingertips!