Features: Fifth generation upgraded version, universal design, suitable for various types of baby bottles. The portable bottle heater is insulated for travel and can keep warm for 5-8 hours, making it safe and reliable. 6-gear precise temperature control to meet different needs. The flashlight of the baby bottle warmer provide additional convenience in low light conditions. The new visualization window allows you to see the milk capacity and increase breast milk or milk in a timely manner. 8000mAh capacity build-in rechargeable battery, rechargeable for long time use. It support 9V/2A fast charging, which makes it charge faster than other similar bottle warmer. Specifications: Component: ABS Size: approx. 235x67x89mm/9.25x2.63x3.5inch Suitable for bottle diameter less than 7.2cm/2.83inch Package Includes: 1 Piece Rechargeable Bottle Warmer 1 Piece USB Power Cable note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.