Features 1、4 Speed Adjustment: This air conditioner fan cool clothes comes with 3 fan blades, with strong wind power, and with the rechargeable 20000mAh (included), you can switch the wind power weak speed, medium speed, strong speed, super strong speed and 4 speeds, free to switch. 2、Sun Proof Coating: This air conditioned cooling clothes is made of super thin soft fabric with sun proof coating to prevent the temperature from rising and has high heat insulation. It achieves an average temperature reduction of 17 °C compared to conventional sun proof air conditioning garments. 3、Excellent Polyester Fiber Material: This air conditioned clothes is made of excellent polyester fiber material, which is sweat absorbing, excellent dispersing, humidity absorbing, breathable, and not easy to produce nasty smell, so that you can work comfortably in the hot and stuffy rainy days. 4、USB Power Supply: The fan of this air conditioned work clothes is USB powered, which is very easy to use, you can start it by connecting it to the power supply and pressing the button, which is very convenient. 5、Wide Application: This air conditioner jacket has a wide range of applications and can be used in a variety of situations such as leisure, outdoor, distribution, schooling, hiking, fishing, work, agricultural work, gardening, field work, construction, transportation, line factory, civil engineering work, iron industry, and events. Specification Item Type: Cooling Fan Jacket Material: Polyester Fiber Rechargeable Battery: Polymer Battery x 1, Battery Capacity: 20000mAh (Included) Wind Speed: 4 Gears Adjustment by power bank Package List 1 x Jacket 2 x Fan 1 x Connecting Cord 1 x USB Cable 1 x Power Bank