GIZGA Mini Portable USB Rechargeable 3 Speeds Personal Fan with LED Light, Built in 2200mAh 18650 Lithium-ion Battery for Home/Office/Outdoor Use - Black A professional portable mini fan with integration of design, simple appearance and firm structure, LED lighting three gear speeds to meet your need Multifunction: Indoor use when need instant cooling need for kitchen and bedroom, saving power when air condition is not so necessary. Especially perfect for outdoor activities and travel. It's also a better and quiet fan to care your baby 3 Mode Wind Speed Adjustable,speed 1 is the lowest wind,speed 2 is the medium,speed 3 is maximum. 3 Speed output power: 1.08W, 1.86W, 3.76W. Super wind but low energy comsumption Charging Way: you can connect the fan with USB cable to power bank and computer or any USB outlet , or using a adapt plug to charge the fan battery Working time: Charging time about 4 hours. Blowing time: 1 speed: about 8 hours, 2 speed: about 4 hours, 3 speed: about 2 hours