Air circulation DC fan. BLDC brushless direct current motor, compact design and energy saving,it can be added mosquito repellent. Nine-speed for air supply. Swing automatically side to side, up and down. Height adjustable. 1-2-4-8H time switch. 5 speed mode: normal, natural, sleeping, maternal and fetal, ECO mode. Low noise with only 11dBA .Six meters long distance air supply.