Description:This neck-mounted fan is suitable for indoor and outdoor use, including offices, railways, travel, camping, picnics, learning and others.This cooling fan is adjustable, and the wind speed includes weak wind, natural wind and strong wind, which can meet your needs under different conditions.The fan has no leaves, so you can use it without worrying that the fan will pinch your hair, thus ensuring safety during use.This cooling fan is designed with vents, which can blow out the wind and maintain makeup. It is suitable for children and adults and is easy to carry.The built-in battery is rechargeable, and the first layer of battery can provide you with up to 16 hours of service. It can free your hands and facilitate you to perform other operations.specification:Color: white, pink, green, blue.Size: 22 * ​​17 * 6cm.Type: No leaves.Battery capacity: 3000mAh.Input: 5V / 0.8APower: 4.5W.Charging time: about 4.5h.Working time: 4-16 hours.Interface type: USB.notes:Due to the difference in light and screen, the color of the item may be slightly different from the picture.Please allow a slight deviation in the measurement data, and make sure you don't mind before ordering.Package Included:1 fan.Automatic constant temperature control, when the temperature is too high, the machine will,automatically stop. With overheat protection.