Xcellent Global 4 Inch Vanes Portable Fan USB Handheld Rechargeable Battery Powered Desktop Fan with 3-level Speed Great for Outdoor, Hiking, Fishing, Camping, Picnic, Baby Stroller, BBQ and Indoor, Black HG075B Portable rechargeable fan powered by 1*18650battery (much safe and efficient), convenient to carry anywhere and anytime. ONE BOUNS BATTERY INCLUDED. 3 settings of the air flow speed: high, mid and low. Upon your choice, the fan works from 2.7-10.8 hours after fully charged. One Led lamp designed on side. Different ways to charge fan with lithium battery in: connect micro USB charging cable via computer/notebook, car charger, power bank, 5V wall USB charger, 5v solar charger etc. Mini 4 inch design, easy to carry, just throw into your bag or use the carabiner and lanyard to han The integration design, simple appearance, solid structure, it is realized the huge wind capacity fan portable, more confidence in the transport and using.