The power switch is a rocker switch and it has two symbols on the face: \u201cO\u201d and \u201c\u2014\u201c. They are the International symbols for power \u201cOn\u201d and power \u201cOff\u201d. \u201cO\u201d means the power is OFF and \u201c\u2013\u201cmeans the power is ON.