This bottle warmer is new in its original box - it has never been taken out/used (it was a duplicate gift). Here’s the description from the company’s website: The Kiinde Kozii breast milk bottle warmer consistently heats baby bottles and bags to an expert-recommended temperature of 98°F, mimicking body temperature. With a simple turn of the dial, you get precise control. Kozii minimizes the risk of overheating by draining the water bath into a reservoir as soon as the heating cycle ends. The Kozii is the ultimate solution for warming your baby's bottles efficiently and safely, ensuring that your liquid gold maintains its nutritional goodness.