Product name: Violent fan Motor speed: 130,000 rpm Wind pressure: about 140g Motor power: 220W Maximum battery: 18650-2600MAH/7.4V5C Two 18650 2600mah in series (7.4 volts) 5C power cells Charging: 5V-2A Charging lights up red, Full turns to green Fast charging: 5V/15W charging lights up red, Full turns to green Battery life: 1st gear battery life about 100 minutes 2nd gear battery life about 40 minutes 3rd gear battery life 13-15 minutes Continuous use time 13-15 minutes Instructions for use: ① and hold for maximum wind speed. ② twice quickly to start the , to start the second gear. to start the third gear. the gears again to cycle. The red light turns on when charging, and the green light turns on when fully . Colour:Black Material:plastic Package Contents: 1 x turbo fan 1 x data cable 1 x storage box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from