At the touch of a button, yoomi warms baby's milk to the natural temperature of breastmilk in just 60 seconds. -breastmilk temperature every time. -portable, ideal for feeding on-the-go or at night. -naturally shaped teat for easy latch-on. -unique 6 anti-colic vent system for less colic. -rechargeable warmer x300. -all yoomi parts interchangeable across the range.