3-in-1 Mini Thermos: Kettle + Thermos + Water Cup. This portable electric kettle lets you enjoy hot water anytime, anywhere. Perfect for outings, work, travel, and camping. Rapid 5-Minute Heating: One-button switch to boiling mode heats water in just 4-5 minutes. Intelligent temperature control ensures automatic shut-off, reducing wait time and saving you time. Leak-Proof and Easy to Use: Double-layer thermal insulation design is safe and prevents burns. One-button operation for quick heating and automatic shut-off. Excellent sealing prevents leaks even when inverted. Safe and Eco-Friendly Materials: The inner lining is made of food-grade 304 stainless steel, and the outer layer is PP to prevent scratches and protect against burns. Seamless cutting and stretching, seamless inner tank, anti-fouling, prevents bacterial growth, safe, hygienic, and easy to clean. Portable Design: The 400ml portable kettle is ideal for personal use, small and easy to carry. The travel kettle won't take up much space, easily fits in your car's cup holder, backpack, or suitcase, and can heat up to 350ml of water.