Warm up beverages for your baby with the Quark Buubi Bottle smart portable milk warmer. It uses an integrated battery to safely bring milk or water for formula up to temperature, then keeps it warm for up to ten hours. This warmer uses drop-safe Tritan for better durability and has a leak-resistant cap to prevent leaks while out and about. | Quark BuubiBottle Smart Portable Milk Warmer