Mini 4 inch design, so portable, just put into your bag, and use it anywhere.
Battery type: Li-ion 18650, high efficient, 2-8 working time (depend on speed).
Dual power source, plug in with the USB adapter or use with the battery.
3 speed settings. LED light on side for emergency illumination.
Ideal for indoor and outdoor using.
Specifications: Output air volume: * 1-Speed work time:2 h * 2-Speed work time:4 h * 3-Speed work time:8 h Output power: 4 W (Max) Battery: 18650 lithium-ion battery Output: 5V 1A DC Charging time: about 5h Dimension: 4.33"x 3.54"x 1.38" (11 x 9 x 3.5 cm) Product Weight:150g
PACKAGE CONTENTS: 1 x ANLENG Portable Fan 1 x 18650 Battery 1 x USB Charger Cable
Warranty from ANLENG - 30-Day Money Back Guarantee - 24-hour friendly email customer support - 6-month warranty