Description:Unique seven fan blade design, makes the portable fan more quieter.This fan has three speed level design and you could adjust the portable mini fan to appropriate speed.It is made of ABS, which is durable.The product can be folded and unfolded.It is suitable of home, sports and travel.Item Name: Portable FansMaterial:ABS,Electronic Component,PPOperating Hours: The First Gear is About 9 Hours; The Second Gear is About 4 Hours; The Third Gear is About 2.5 Hours.Charging Time: About 3HoursSupply Voltage: 3.7VOperating Voltage: 5VWorking Current: The First Gear is 210mA; The Second Gear is 460mA; The Third Gear is 900mAWorking Power: 3WCurrent: 1000mAhPower: 5WCapacity: 2000mAhSize Details:Fold Size: 8.5cm x 3.9cm x 21cm/3.35" x 1.54" x 8.27" (Approx.)Expand Size: 8.5cm x 3.9cm x 60cm/2" x 3" x 23.62" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 X Portable Fans