1、POWERFUL AND LOW NOISE: Handheld cooling fan simulates an airplane turbine engine, built in 315° large pitch spiral blades, rotating compressed airflow in the duct reaches 3 to 5 times that of an ordinary plane fan blades after 180° release, reducing noise. 2、MULTI FUNCTIONAL: Mini handheld cooling fan, the length of the circulating air duct is 2.3 inches, which is 3 times the length of a normal mini fan. It can be used as a cool air blower to dry your hair in summer. 3 speed adjustable, with ice compress function. 3、LONG BATTERY LIFE: The small handheld fan is powered by built in rechargeable 1800mAh battery for high performance and efficiency. Provides you with 3 to 6 hours of continuous working time depending on the wind speed. 4、USB CHARGING: This mini handheld fan can be charged by laptop, mobile power and charging plug, equipped with USB cable, support working while charging, no need to worry about battery power. 5、LIGHTWEIGHT AND PORTABLE: Air conditioner handheld fan weighs 140g/4.9oz, 15x5x5cm in size, very easy to carry and put in your bag, suitable for summer camp, traveling, camping, walking, shopping or other outdoor activities. Item Type: Handheld Cooling Fan Material: ABS Size: Approx. 15 x 5 x 5cm / 5.9 x 2 x 2in Battery Type: Lithium Battery (Shipped with Built in Battery) Battery Capacity: 1800mAh 1 x Handheld Cooling Fan 1 x Charging Cable 1 x Storage Bag 1 x User Manual