1Smart Temperature Control: The milk warmer features intelligent constant temperature control, ensuring that the milk is heated to the ideal temperature for the feeding experience for your baby. 2White Noise Design: This multifunctional white noise milk warmer is equipped with an innovative white noise design that helps soothe your baby to sleep, giving parents more precious rest time. 3Multipurpose Application: The multifunctional white noise milk warmer can be used for various purposes, including heating and maintaining the warmth of baby bottles to meet different needs. 4Portable Design: The constant temperature milk warmer features a portable design, making it ideal for on the go use, allowing parents to provide warm milk for their baby anytime, anywhere. It is compatible with bottles with a diameter of 6.5-7.8cm. 5Premium Plastic Material: The milk warmer is designed with security in mind, made from premium plastic material that are safe and long lasting, giving parents peace of mind while using it. Item Type: White Noise Bottle Warmer Material: Plastic Size: Approx. 8.5x8.5x17.5cm or 3.35x3.35x6.89in Battery Type: 5800mAh (Shipped with Built in Battery) 1 x Heating Bottle Insulation Sleeve 1 x User Manual 1 x USB Cable