The BuubiBottle Smart Portable Milk Warmer by Quark is the ultimate baby travel essential for breastmilk on the go. With a memory function to remember your last-used temperature you can evenly warm milk or formula up to 122ºF whenever you're on the go. The portable baby bottle warmer auto sleeps when sensor shows empty.The BuubiBottle water warmer for baby formula or breastmilk is designed for life with kids in mind. Made with durable Tritan, a thick silicone gasket for tight attachment and carrying handle for easy toting. It also features a locking button in the lid to stop accidents and spills. The LED-lit display allows you to increase or decrease the temperature and check battery level. Simply charge beforehand with the USB type C cable and expect up to 10 hours of battery life, or 5 warming cycles, depending on use. As BuubiBottle Smart Portable Milk Warmer is an electric bottle warmer, it's important to interior hand wash only. Included with the portable bottle warmer for travel comes a USB Type C cable, 5V/2A power adapter, and soft flexible silicone cleaning brush to help with washing.Designed for parents by parents. Quark is an innovative baby tech company that designs intelligent baby gadgets and accessories inspired by busy parents. Committed to providing innovative, safe and quality products for your little ones, Quark is here to help make parenting a little bit easier.