1.Product Name:Waist fan
2.Model:W4
3.Colors:Black/ White
4.Praduct Size:82*68*42 mm
5.Fan Power:1.6W-4.7W
6.Fan Speed:1-199 Levels
7.Max Speed:12500 RPM
8.Package Includes:Host, User Manual,USB Cable, Lanyard
9.Working Voltage:Cooling Chip: 3-4.2V/Fan5-9.5V
10.Battery Capacity:3.6Ah (3600mAh)
11.Working Time：4-12hours
12.Battery Type: 18650*2
13.Charging Time:About 4 Hours
14.Display:LED Digital Tube 188
15.Interface：TYPE-C