VH F09 Portable USB Hanging Neck Electric Fan Double Hanging Neck Hand Holding Small Fan Cooling FanDescription:1.Innovative Fashion Design AppearanceThe appearance of the fan is based on the shape of the earphone and the body curve, which not only satisfies the sense of comfort, but also has a strong sense of fashion design2.Air Duct Design Quickly Reduces The HeatThe strong wind design of the is adopted, and the design of the vertical air duct converts the horizontal air duct into a vertical air duct at a right angle, and the cool wind is directly from the bottom to the top, forming a cool wind wrapping area for the head, which concentrates the wind and quickly cools down.3. Fibonacci Wind Channel,Less LossThe Fibonacci technology is the basis of many harmonious patterns in nature, also known as the golden section. The air duct of the turbo fan uses this principle to make the air duct loss smaller, the wind power greater and quieter4.Built-In Rechargeable BatteryBuilt-in lithium battery, can be used for 2 hours in the first gear, 3 hours for the second gear, and 5 hours for the third gearSpecification:Model : F09Material : ABSColor : Dark GreenWeight : 192gSize : 229 x 218 x 25mmInput : 5A = 1A maxWind Speed : 3 LevelPower Supply : USB ChargingUsing Time : 2-5 HoursPackage Included:1 x USB Fan1 x USB Cable