1、USB Powered and Constant Temp: This electric lunch box is USB powered. When not plugged in, it keeps food warm for 3 to 4 hours. When plugged in, it maintain a constant temperature of 60℃. 2、Versatile Cooking: No water is required, making it ideal for steaming buns, shao mai, and dumplings. This ensures safe use while providing a variety of cooking options. 3、Food Grade Material: Made with a 304 stainless steel liner, this electric lunch box ensures food safety and health, allowing you to enjoy your meals with peace of mind. 4、Leak Proof Design: The sealing feature of the portable heating cup prevents leaks, enabling you to carry liquids in your bag or handbag without any worries. 5、Compact and Lightweight: Designed for easy travel, this heating lunch box is lightweight and saves space, suitable for business trips or daily commutes, and includes a built in spoon for added convenience. Item Type: Portable Food Warmer Material: Stainless Steel + Silicone + PP Power: 20W Temperature: 60°C Capacity: 600ml Weight: Approx. 390.00g / 13.76oz 1 x Portable Food Warmer 1 x USB Cable 1 x Spoon (including components x2)