Features: Portable milk bottle insulation sleeve with digital display, 20 temperature levels adjustable, meet your differernt need. Quality PU materials, comfortable and environmentally friendly, skin friendly, with good insulation effect and long-lasting constant temperature. Adjustable self adhesive tape for a comfortable fit on the bottle, suitable for most milk bottles in the market. USB type-c power interface, supporting multiple charging methods, such as charging heads, power banks, or car charger. Designed specifically for parents who need warm milk for their babies, this portable bottle warmer is a must-have accessory for parents whether they are at home, traveling, or outdoors. Specifications: Material: PU Leather Color: Green, Pink(optional) Name: Digital Display Milk Bottle Insulation Sleeve Memory Function: last memory adjustment/no repeat operation Interface Type: USB Type-C Heating Temperature: 35℃~55℃ adjustable Power: 5V 2A Package Includes: 1x Digital Display Milk Bottle Insulation Sleeve note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.