Features1Cooling: Mini handheld fans built in semiconductor cooling chip, the surface of the metal aluminum, cooling cooler experience better. 2Detachable Base: Handheld cooling fan has a detachable base, so you can take it off and hold it by hand, or put it on a table with the base installed. 3Dense Grid: Portable handheld fan has a dense grid that cuts airflow evenly and densely, and the cyclone structure is designed to create a stronger and softer breeze. 4Long Battery Life: Portable handheld fan has a built in 2200mah high capacity battery for USB C type power supply, with a charging time of 3 hours and a usage time of 1.5 to 8 hours. 5Durable: Handheld rechargeable fan is made of ABS material, aluminum alloy, stainless steel, electronic components for stability and durability.SpecificationItem Type: Handheld Cooling FanMaterial: ABSProduct Material: ABS, Aluminum Alloy, Stainless Steel, Electronic ComponentsBattery Type: Lithium Polymer BatteriesBattery Capacity: 2200MAH (Shipped with Built In Battery)Battery Voltage: 3.7VOperating Voltage: DC5VCharging Time: 3 HoursUse Time: 1.5 to 8hPackage List1 x Data Cable1 x Base1 x Handheld Cooling Fan1 x Instruction Manual