Description: Double baby Bottle Warmer SleeveOur warmer features a double bottle design allowing you to warm two bottles at once, saving time and making feeding more efficient, suitable for twins. USB PoweredUSB Travel Milk Heater Keeper, you can power it from a variety of devices such as a laptop, car, providing flexibility for parents on the go. Compact and PortablePortable Travel Milk Heater Keeper is designed with portability in mind; It's lightweight, compact, and easy to carry, making it great for parents on the go. Constant TemperatureThis Double baby bottle warmer sleeve has constant temperature feature, can maintain a constant temperature, ensuring your baby's milk always at the great temperature for feeding, providing more flexibility and convenience. Thoughtful Gift USB Double Bottle Insulation Cover can effectlly keep baby milk warm. Say goodbye to cold milk and enjoy troublefree feeding times with this practical bottle warmer. Practical gift for busy moms and dads, this bottle warmer is a must have accessory. Specification: Material: Polyester, Neoprene, Electronic Component Charging Port: USB Type C Size Chart: Unfold Size: 47.3cmx12.1cm/18.62inchx4.76inch Package Includes: 1 USB Dual Baby Bottle Warmer 1 Charging Cable Note: Note: When heating a single bottle, please place the bottle on the right in warmer cover (RIGHT), the effect is more good.