This is a portable small, safe and clean, temperature-controllable instant water boiler designed for travelers. The water outlet is pushed out only when in use in order to maximize hygiene and give the boiler a clean and streamlined appearance. The lid is made of food-grade PP material and can double as a cup. It only takes 3 seconds to begin hearing after the power is turned on. There are three temperature controls of 45/75/99 degrees to meet the needs of heating milk and water for tea.