Feature: Wind Speed: 1-2-3, Neck fan, Low Noise, Rechargeable battery, Big Wind Use time, 10.5hours Technical Specification Power: 4W (Max) Battery: Li-ion 18650 3.7V 2000mAh Working time: About 10.5 hours Charing time: About 3 hours Item size: 132.8*61.5*34mm Net weight: 198g Accessory: Charge cable, Manual, Dock 规格： 功率：4W 电池:锂电池18650 3.7V 2000mAh 工作时间:约10.5小时 充电时间:约3小时 产品尺寸：132.8*61.5*34mm 产品重量: 198g 配件： 充电线，中英文说明书，底座