PRICES MAY VARY. [Longer Working Time] 3000mah large capacity, support 7-12h working time with one full charge. Working time depends on different speeds: Speed 1 (12 hours); Speed 2(10 hours); Speed 3(9 hours), Speed 4(7 hours); Speed 5(7 hours). [Digital Display] Designed with digital display, you can see the remaining power easily, avoid sudden power off. The usb rechargeable fan is foldable, support 90 degrees adjustment. [Multifunction Fan] Handheld Fan /Neck Fan/ Desk Fan: The portable mini