Features: 1. Selected materials, durable, safe and environmentally friendly, non-toxic and harmless, harmless to human health. 2. Adopt seamless stamping and drawing process, seamless inner liner, dirt-resistant, prevent bacterial growth, and easy to clean. 3. It adopts double-layer thermal insulation design, which is safe and not hot. One key switch, fast heating, automatic power off. 4. With waterproof design protection, the bottom is non-slip and has good stability. Small size, light weight, easy to carry and can be taken on the plane. Specifications: Product Name: Portable Water Bottle Color: White/Pink Material: Stainless Steel Rated power: 220V 50HZ Power: 300W Tick Marks: Marks on Interior Walls Capacity: 0.4L Heating method: electric heating tube heating Additional functions: automatic power off/anti-dry burning/overheating protection Product size: 75*205MM Package size: 105*105*240MM Packaging list: 1 Portable Water Bottle 1*Power Cord 1*User Manual Instructions: 1. When boiling water, close the lid and keep the small rubber lid open. 2. The device will automatically shut down after the water is boiled. 3. When boiling water, please cover the lid, otherwise the water will splash.