5 Temperature Settings Available Made of safe and heat-resistant materials, BPA-free, with 5 temperature settings (38, 42, 46, 50, 55C). This portable bottle warmer is an essential tool for parents who want to ensure their baby's safety while on the go. This feature is especially useful for parents who have babies with sensitive stomachs or who prefer their milk or formula at a specific temperature. Bottle warmer compatible with most baby bottles. Features a removable closure that adjusts to fit various bottle sizes, accommodating nearly all standard milk bottles. Simple design, convenient and practical. Easy-to-Clean Travel Bottle Warmer The portable bottle warmer is easy to clean. Use a damp cloth to gently wipe the exterior cover to complete the cleaning process. Note: This bottle warmer operates on low-voltage USB power. It heats gradually and is not designed to rapidly heat a baby bottle. USB Bottle Warmer Compatible with various USB 5V 2A power sources such as power banks, laptops, and charging adapters. Package includes: 1 insulated milk bottle cover; 1 USB cable. Portable and Lightweight Compact size for easy portability. Ideal for use at home or on the goperfect for travel, shopping, hiking, airplanes, trains, and cars. Helps meet your child's feeding needs anytime, anywhere.