Dr. Brown's Insta-Prep Warm Water Dispenser simplifies baby feeding sessions with bottle prep in one easy step. With three water temperature settings—room temp, body temp and slightly warmer than body temperature—you can customize the perfect water temperature for baby's bottles. Plus, the warming feature stays on 24/7, saving time with on-demand warm water to mix baby's formula. The unique glass warming tank helps maintain ideal temperature without transferring a plastic smell or flavor, and the nightlight feature makes it easy to prep baby's bottle in low light, perfect for nighttime feedings. Fill the bottle with warm water by pressing the water dispenser and release when done. To complete the mix, add formula powder. Always follow formula manufacturer's instructions for preparation. Warranty valid in the US and Canada only.