CAWKAY Lunch Bag, Insulated, Built-in Heater, USB Heated, Electrically Heated, Large Capacity, Lightweight, Waterproof

[Lunch Bag with Heat and Cool Function] This lunch bag features an aluminum foil interior for excellent heat and cold insulation. It measures 21 x 16 x 8 cm, has a 2.5L capacity, and weighs just 200g. The exterior is made of water-repellent Oxford cloth, protecting the contents from rain and dirt. [USB Heating for Convenience] The USB-powered heating function can be used with computers, car USB chargers, and power banks. It heats up to around 50°C and automatically switches to keep-warm mode, making it a convenient feature. [Large Capacity and Multifunctionality] This lunch bag has a large 2.5L capacity, so it can hold not only packed lunches but also canned coffee and other beverages. The exterior mesh pocket can store a power bank, making it useful for a variety of occasions. [Fully Washable and Hygienic] The built-in heater can be removed and washed with water to keep the bag clean. The heater is replaceable free of charge, ensuring long-term use. [Caution and Usage Tips] A power bank is not included. This bag is primarily designed for heat retention and is not suitable for warming cold foods. Connect it to a 5V/2A USB port. Do not put plastic lunch boxes or bottles inside the bag, as the inside of the bag will heat up for a long time.