iMBAPrice 4-inch Vanes 3 Speeds Portable Mini USB Rechargeable Desktop Fan wih LED Light High efficient and 2-8 Hours long working time (Depend on the mode you use) 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. Dual Power Sources, plug in with Adapter(Not included) or use with Li-ion 18650 Batteries (included) Come with a bright white LED light on one side for illumination use. Adopts the brush and slotless motor and 4pcs plastic fan blades to provide you strong wind and let you say goodbye to summer heat waves.