1.140000 RPM turbofan, brushless motor, powerful. 2. Strong dust removal, handling a series of debris such as accumulated dust, sand, hair, etc. 3. Built in 21700 lithium battery, with long battery life and up to 4 hours of low-frequency use. 4. Infinite speed regulation, easy to operate with one hand, two in one switch speed regulation, increasing air volume from small to large, better protecting the motor. Name: X6 pro violent fan Working time: 5 hours - 12 minutes Voltage: 5V/3A Power: 150W Motor power: 200W Motor speed: 45000-140,000RPM Speed regulation mode: Infinitely speed regulation Charging board: Type-C Motor: Brushless motor Battery capacity: 21700 lithium battery 4000mAhx2pcs Colour:Black Material:ABS Package Contents: 1 x brushless turbo fan 1 x flat long nozzle 1 x long blowing nozzle 1 x short nozzle 1 x brush 1 x filter 1 x charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color