Large Capacity Battery: These bottle warmers have built-in large capacity batteries that can be charged in 6 hours. Equipped with a USB cable, supporting multi scene power supply, making outing easier. Built-in battery, mobile phone chargers, car internal power sources, or use mobile power sources for power supply. Adjustable Temperature: The bottle insulation covers can help warm and quickly heat breast milk and brew milk powder. 360 ?a surround heating, 6-levels temperature adjustable. Digital display of real-time temperature allows for easy control and mastery of the temperature range. Maintain a constant temperature of around 42 ?c. Night Lamp Design: This milk bottle insulation sleeve has a night lamp design, and the warm lighting is not dazzling. Convenient to get up and breastfeed in the middle of the night, providing lighting. Carrying Out: This bottle warmer is suitable for going out, picnic, camping, travel, shopping, self driving, visiting friends, gathering activities, family parties, and more. When taking children out, they can always have warm breast milk to drink. Widely Used: Milk bottle warmers are suitable for various shapes of milk bottles. Can be used for milk bottles with a diameter of 7.2cm/2.83in or less. Strong adaptability, able to tightly wrap around the outside of the bottle. Compact and lightweight, easy to carry. SKU: CLBPlease note: As we are international seller, our delivery time will take about 10 working days. Our logistics provider and delivery method is: New Zealand Post.