Mini Turbo Fan SP-406

Switch:short press to turn on,after turning on,there are 3 geas,short press to switch gears,low gear, medium gear,high gear
Press and hold the switch for 3 seconds to enter the violent mode. The violent mode requires you to keep pressing the button

1.Voltage:7.4v
2.Battery capacity:21700 2S1P 4000mAh 10C
3.Charging voltage/current:5.8v/1.61A
4.Charging time:≤5h
5.Battery life:violent mode:7min30s
high mode:15min
mid-range mode:30min
low-range mode:55min
6.Wind force:violent wind:220
high wind speed:130g
medium wind speed:68g
low wind speed:33g