The nursing bottle heater cover is made of high-grade material. Durably constructed with insulated lining, keeps your milk fresh by heating breast milk to a right temperature, and keep warm for a long time, convenient for feeding. Easy for storing, easy for using and easy for charging. Features -Material: PU -Size: 21.00X9.00X9.00cm/8.25X3.54X3.54inch -Temperature Mode: -Charging Method: USB Changing -Charging Power: 10W -Charging Voltage: 5V -Charging Current: 2A -Providing a to heating water for brewing milk powder in the middle night. -Can be used for normal charging during your car trip, bring baby explore this world together. -This breast milk heater and warmer cover can heat up quickly and evenly to the suitable temperature. -Sandwich structure heat preservation design, heat preservation heating core fireproof treatment. -Individual design, can keep milk clean and keep with other baby supply. Package list: 2 x bottle heater bag 2 x charging cable