3 in 1 mini thermos: kettle + thermos bottle + water cup. Portable electric kettle. Put the kettle down. So you can enjoy hot water at any time. Perfect for going out, going to work, traveling, camping. 5 minutes fast heating: One-button switch, press to switch to boiling water mode after power on, boiling takes about 4-5 minutes, intelligent temperature control, automatic shutdown, reducing waiting time and saving time. Leak-proof and easy to use: Use a double-layer heat insulation design, safe and not hot. One-button switch, fast heating, automatic shutdown when boiling. Superior sealing so it won't leak when inverted. Environmentally friendly and safe materials: the inner liner is food-grade 304 stainless steel and the outer layer is PP, which can prevent scratches and protect the user from burns. Seamless cutting and stretch forming, seamless inner tank, anti-fouling, prevents bacterial growth, safe, hygienic and easy to clean. Easy to carry: The portable 400 ml kettle is ideal for personal use, small and portable. The travel kettle does not take up much space, easily fits in the car's cup holder, your backpack or suitcase and can be filled with up to 350 ml of water when heating.