Zoom K-010BATT 4" 3 Speed Portable USB Rechargeable Tabletop Fan with LED Light, Mini 2-8 Hours long working time (Depend on the mode you use) Two way charging. plug in with Adapter(Not included) or use with Li-ion Batteries (included) 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. One bright white LED light on one side for illumination use. Stronger wind power