Baby Brezza Instant Warmer is a revolutionary way to make a warm baby bottle instantly in 1 easy step. The Instant Warmer dispenses warm water on demand 24/7 and maintains the desired temperature all day and night- so it’s always ready when you need it. No more waiting 3-5 minutes for a bottle to warm up in a traditional bottle warmer. Just press the lever to dispense warm water in your bottle, add formula, mix and feed in seconds! Customize for your baby's liking by choosing from 3 temperature settings: Body Temperature, Warmer Than Body Temperature, and Room Temperature. The airtight water tank holds 50 oz – enough for an entire day’s worth of bottles. Works with all brands/types of bottles. 1 year limited warranty