Nursing Bottle Cover ing Sleeve USB Charging Constant Temperature PPSU Milk Bottle er er| s & Sterilizers Nursing Bottle Cover ing Sleeve USB Charging Constant Temperature PPSU Milk Bottle er er Product 1.Product specifications(approx): suitable for 55-75mm/2.17-2.95in 2. supply 5: V ~ 2A Frequency 50H7 3. : 10W 4.Product color: 5.Product material: microfiber PU\ heating film USB power cord Feature 1.Wide application: The package is convenient and firm, and not easy to slip off. The product size is suitable for most bottles on the market. 2.Suitable object: It can be applied to a variety of materials heating, and it can be used for water s, mineral water bottles, milk boxes, etc. 3.Safe voltage and current: 5V-2A safety voltage. Common for: car, power bank, charging head. 4.Intelligent constant temperature design: water temperature control for easy to use and save trouble. 5.Convenient design: Convenient and intelligent constant temperature design for easy master water temperature. And it is with fast heating speed, for convenient use. It is a nursing bottle insulation cover, powered by USB charging, can keep constant temperature, good insulation effect, can also heating water , mineral water bottles, milk boxes, etc..