Battery Operated Personal Summer Pocket Fan With Rechargeable Lithium Battery Condition:Brand new; Size: 12x7x1.8cm/4.7x2.8x0.8inches Function:Mini fan for cooling in hot weather,re-chargeable,Cool air lasts two hours before recharge Advantage:portable and lightweight ,Sleek inconspicuous design with minimal noise,bring instant cool feeling Just turn on the switch ,then cool air Blows straightly