Are you feeling freezing in the cold dorm or office? This mini heater is made for those chilly days in your room or at the office. Adopt innovative PTC technology, ceramic heater warms up in 3S. 500W High heat with Fan-Only Mode provides efficient heat into every corners of the house that needs constant heat in cold weather. Automatic overheat protection will protect you and your family. Featured with one button control and low-noise, never disturb your resting, sleeping, reading and working.