Color: Black Size: 11*8.5*3.7cm Weight: 166g Powered by: 18650 flat head battery (Included) Speed mode: 3 Speed Modes Output power(max): 4W Input current: 0.5-1A Working time: 2-8 h battery specification: Li-on 18650 3.7V (2200mah) Battery installation: Removable Charging time:4-5 h Multipurpose and practical fan with its creative handheld and foldable design. Two kind of power supply, standard 18650 2000 mA replaceable battery, can be used 2-8 hours. 3 wind power, the use of time according to different wind shift time will be different. The first press the switch: Low speed wind Second Press: Middle speed wind Third Press: High speed wind ,Micro USB charging cable, can charge and use with computer, cell phone chargers, mobile power, plug and use, plug and charge, very convenient to use. " Brand No Brand SKU 100814313_NP-1021316059