: You press a orange button on the warmer. This triggers a chemical reaction that generates heat.
: Because the milk is heated "on-demand" as it flows, the bulk of the milk stays cool in the bottle, preventing the breakdown of nutrients caused by repeated overheating. Yoomi Self-Warming Feeding System
: No batteries, no cords, and no searching for a cafe with a microwave. : You press a orange button on the warmer