Material: stainless steel. Voltage:220V Frequency:50Hz Net weight:0.5kg Size:0.5L Unique Separate Lid Design, Separate Lid Design for Easy Cooking Noodles, Eggs, Hot Milk, etc. Imported medical grade 304 stainless steel water bottle, safer materials. High safety and high temperature resistance. The button is not the power button, it is the restart button. (Use it when you want to reheat) Automatic power failure Automatic power off design features an automatic power off when water boils, (about 20 seconds after boiling water, the electricity is automatically turned off.). Food grade stainless steel design teapot for touch sensor ovens.