Features: 1Dual Purpose Heat Preservation Bag: The bag is a hot and cold dual purpose heat preservation bag, this product solves the problem that people cannot heat and insulated food, beverages and other things in the car or when traveling. 2Portable: Easy to carry, using AC and DC 12V safe voltage electronic heating, automatic constant temperature, continuous heating, long heat preservation time, and can be used as ice packs in summer. 3Fast Heating: The family specific type uses a conventional 110?220V power supply, which has fast heating and good heat preservation, mainly due to high efficiency. The smart model can control the temperature, which is more intimate and more accurate. 4Car Heating Model: It can be heated in the car, easy to carry out, can be used for picnic barbecue, thermal insulation heating, convenient for the whole family to use when going out, with the function of keeping new and chilling, it can meet your needs in summer and winter. 5Wide Applicability: This heating pack is suitable for home, food industry takeaway, baby food heat preservation or travel, mountaineering, camping, etc.Item Type: Vehicle Constant Temperature Heating Insulation BagInsulation Bag Material: Food Grade Aluminum Foil Cloth, Insulation Cotton, Oxford ClothGross Weight: 579g / 20.4ozProduct Size: Approx.25 x 20 x 10cm / 9.8 x 7.9 x 3.9inOn Board Voltage: 12V (on board plug)Household Plug Voltage: 100-240V (US standard)Power: 90WScope of Use: car or homeMain Uses: long distance travel, self drive travel, outdoor travel, etcPackageList:1 x Heating Bag1 x Cigarette Lighter1 x Household Plug1 x Strap