1USB charging: The bottle warmer comes with a USB cable. Simply connect the cable to any power bank, such as a car USB or laptop port. Helps you heat milk anytime, anywhere. 2 Good Thermal Insulation: This milk warmer bag can keep food and drinks warm for a long time. It also prevents the hot water cup from burning your hands and makes it easy to clean. 3. Durable and safe: The bottle cooler bag is made of durable material, odorless and baby-friendly. It has good wrinkle resistance and shape retention, as well as high strength and resilience. 4. Temperature control: Intelligent multi-speed temperature control, which can be adjusted according to seasonal temperature. Suitable for all kinds of baby bottles. It is insulated during installation and is suitable for all kinds of milk bottles. 5. Soft and portable: Made of soft silicone, it is not easy to fall off and can be applied to a variety of materials, such as water cups, mineral water bottles, milk cartons, etc. You can hang it on your stroller or crib. Specifications: Material: Polyester Size: About 27.5*12.5cm/10.83*4.92 inches (unfolded) Voltage: 5v Power: 10w Power interface: USB Product list: Baby bottle thermal bag*1 USB power cord*1 Note: Due to the lighting effect and Due to the shooting angle, the product may have color differences, please understand. There may be errors in product dimensions due to manual measurement.