Portable usb feeder warmer pouch shaped easy to carry(random design )About this item Keep milk warmer : ) can keep the temperature of the baby bottle and effective preservation of nutritious milk. USB heating bottle sleeve : ) hook and loop design, the adjustable design is suitable to small baby bottle Thermostat food heater materials and is safely insulated, constant temperature heating way. Keep baby milk warm : ) baby can drink milk while warming up, can also timing heating time for convenient feeding. Direct USB