Portable 3 Speeds Rechargeable Mini USB Fan Powered by USB Port / Battery Lightweight Handheld PC Laptop Desktop Cooling Table Desk Small Fan for Home,Office,Dormitories,Camping,Cycling,Travel,Picnic Double Charging Way - Powered By Premium detachable 2200mAh lithium rechargeable battery(much safe and efficent), convenient to carry anywhere and anytime;Or connecting micro USB charging cable via computer/notebook, car charger, power bank, 5V wall USB charger, 5V solar charger etc. Small Body,Large energy - 3 settings of the air flow speed: high, mid and low. Upon your choice, the fan works from 2-6 hours after fully charged(Depend on the mode you use). One Led lamp designed on side. Compact Handheld Air conditioning - Size aprox 140*106*42MM. Fits easily into any laptop bag/handbag/backpack, making it perfect for travel; Light-weight design makes it even easier to carry with you than ever, so you never have to be the one caught sweating, even when you're on the go Quiet and Safe - It does not make any annoying noises and seat neatly on your working/study desk, keeping you and PC cool but does not blast papers everywhere, bright Color, ideal for home, office, school, travel etc. Quality Guarantee - 100% Brand New and High Quality;100% Money Refund Guranteed