Although the kettle on the bell looks high, it is no trouble to operate. There are three modes of boiling water. When selecting full intelligent boiling water, press the on key first, and then press full intelligent boiling water. If you want to select water with a specific temperature, press the key first, then press the temperature to select, and finally press the full intelligent boiling water. The key sequence in manual mode is basically the same. Press the button first, but it takes 3 seconds to boil water completely intelligently, and then press the temperature to choose.