Turbocharging pure copper motor Turbocharging technology increases air volume Pure copper motor runs smoothly and has a longer service life Upgraded power display, no worries about battery life. Press the battery display button to check the power. The power is visualized, no more worries about battery life Magnetic black technology reduces weight and drag. Built-in magnetic in the air nozzle ensures stable adsorption and does not fall off, reducing weight and reducing wind resistance 8000mAh lithium battery with long battery life. 4000mAh*2 dual battery design with stable voltage output. A good tool requires long battery life One-button start stepless speed change. Press and hold the switch to start. Speed control with one hand to control the low-end blowing ball without breaking the high-end violent hurricane Product Name: Violent Turbo Fan Motor speed: 140,000 turbine speed Maximum wind speed: 62 meters/second Battery capacity: 4000mAh*2 Battery type: 21700 battery cell Colour:As Shown Material:ABS Package Contents: 1*Violent Turbo Fan 1*Long Air Nozzle 1*Charging Cable 1*Chinese and English instruction manual 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 the real thing. The measurement allowed error is +/- 1-3cm.