It is perfect for someone who wants a short range but powerful breeze on the face and goes perfectly on a desk、 camping tent or nightstand.Specifications:Colors: 5 Battery Type: 18650 Lithium Rechargeable Battery Output air volume: 1-Speed 873 L/Min (work time about 2 hours) 2-Speed 459 L/Min (work time about 4 hours) 3-Speed 242 L/Min (work time about 8 hours) Output power: 4.5 W (Max) Battery: 18650 Lithium-ion battery Charger: Input: 100-240V AC Output: 5V 1A DC Charging time: about 4-5 hours Fan Charged Method: Micro USB Cable connect to USB Port of PC/notebook etcPackage includes:1 x Mini USB Fan 1 x Micro USB Cable 1 x 18650 Lithium Battery