Feature: 1. PREMIUM MATERIAL: The milk bottle bag warmer is made of premium fabric material, no irritating odor, even heat preservation, soft and comfortable touch, can be assured that the baby use. 2. TEMPERATURE ADJUSTMENT: With intelligent temperature adjustment, 21 precise temperature control, can be adjusted to the right temperature at will. 3. EASY TO USE: The bottle insulation cover is small in size and light in weight, easy to carry. Whether you are breastfeeding at night or going out, it can reduce the pressure of mom. 4. WIDE APPLICATION: Bottle bag warmer is suitable for most bottles, can hold soy milk, drinks, coffee, water, milk, hiking, shopping, traveling, hot drinks anytime, anywhere. 5. IDEAL GIFT: The milk bottle bag warmer can be used as a present for friends, coworkers, relatives, family members with newborn babies, so that the baby can drink milk at the right temperature. Easy to use and safe. Specification: Item Type: Baby Bottle Insulation Cover Material: Faux Leather, Lint, Silicone Weight: Approx. 154.00g / 5.43oz Unfold Size: Approx. 30x14cm / 11.8x5.5in Inner Diameter: Approx. 7.5cm/3.0in Foldable Size: Height: Approx. 14cm/5.5in Bottom Outer Diameter: Approx. 8.5cm/3.3in Temperature Levels: 21 Levels (Approx. 40-60℃) Application: For Most Bottle Sizes Package List: 1 x Baby Bottle Insulation Cover 1 x USB Cable Note: Manual measurement please allow some error.