I bought this for a trip and never ended up using it as my daughter didn’t need her formula warmed up. New condition (never used). The Baby Brezza Portable Travel Bottle Warmer offers super-fast, even warming with multiple temperature settings, ensuring milk stays at the perfect temperature without overheating or losing nutrients. Plus, with a rechargeable battery, spill-free design and easy cleaning, it's a hassle-free way to keep feeding time smooth and stress-free wherever you go. Most Advanced Portable Warmer: Safely & evenly warms water, breastmilk, formula or milk storage bags on-the-go; Advanced sensor technology warms evenly from top to bottom to protect breastmilk nutrients; Real-time temperature always shown on LED display. Convenient & Easy to Use: No adapters, upside-down bottles or leaks like other portable warmers. Just add liquid inside & choose temperature. When done, warmer beeps & auto shuts off. Then pour liquid using 360° pour spout or by unscrewing lid. Large Capacity, Slim & Compact Design: Stainless steel cup holds 9 oz of water, formula or breastmilk, or a filled 6 oz milk storage bag; Easily fits in cupholders or bottle pockets in diaper bags, backpacks, cars & strollers; Slim size. Rechargeable: Advanced battery technology warms up to eight 6 oz bottles (from room temp to 98°F) on a single charge; Includes USB-A charging cable; Power adapter not included.