Features 1、USB Heating: USB heating, you can use a power bank, you can also use a mobile phone charger, with its own charging cable. 2、Water Resistant Oxford Cloth: The lunch box is distinguished from the charging treasure bag, and the water resistant Oxford cloth is used, which is not afraid of rain. 3、Internal Aluminum Film Design: Portable ovens have internal aluminum film design, and the stains are wiped clean, which is convenient and fast. 4、Lightweight Handheld: Portable food warmer can provide you with hot food, portable, so that your stomach is no longer hurt. 5、Glossy Opening: The self contained socket is more convenient for heating, high durability zipper, the opening is glossy, and the bite is tight. Specification Item Type: Lunch Bag Portable Oven Material: Oxford Cloth, Aluminum Film Product Size: Approx. 20 x 15.5 x 8cm / 7.9 x 6.1 x 3.1in(Manual measurement, there will be 1-2cm error) Package List 1 x Lunch Bag Portable Oven 1 x Charging Cable