Material: PU, thermal insulation cotton Dimensions: 90mm, 120mm Compatible baby bottles: Designed for baby bottles with a diameter of 6.5-7CM Color: Bright yellow, bright green Quantity: 1 piece Package content: 1 x Insulation bottle cover, 1 x USB charging cable 1. Milk Bottle Warmer This baby bottle warmer heats quickly and evenly. It features an adjustable design to fit most standard baby feeding bottles. The Velcro strap on the back allows for a secure fit on various bottle sizes. Easy and safe to use for parents on the go. 2. Portable and Compact Sleek and compact design for easy portability and storage. Ideal for use during travel or while driving, providing a convenient way to warm baby bottles safely and efficiently. 3. Sandwich Insulation Design Features a multi-layer sandwich structure with a heating core for effective heat retention. The outer layer is made of high-quality PU material, soft and skin-friendly. The design ensures safe and consistent heating performance. 4. USB Powered Equipped with a USB charging cable. Can be powered via power bank, car USB port, or laptop. The built-in pocket allows storage of a portable power source, enabling bottle warming anytime and anywhere. 5. Compatible with Multiple Bottle Materials Suitable for heating bottles made of plastic, glass, and stainless steel. The exterior remains cool during operation. Automatically switches to保温 mode at 42°C and supports continuous保温 for up to 24 hours.