Features: 1. High-quality Fan, Shaped By Cnc Sculpturing. 2. Exchangable Heads, Expecially Designed For Mutiple Cleaning Purposes 3. The Fan Uses A Brushless Dc High-Speed Motor With A Maximum Output Speed Of 130, 000rpm, Which Can Generate A Super Strong Wind Speed Of Up To 52 Meters Per Second. 4. Brushless High-Speed Motor, With A Maximum Output Speed Of 130, 000rpm, Is Powerful, Durable And Stable, And Will Not Burn Out Under Long Loads. 5. Built-In 2 21700 -Capacity Lithium Batteries, The Theoretical Battery Life () Is Up To 4 Hours, Making It More Durable! Description: 1. Rated Input: 15W 2. Battery: Jingwei, Voltage: 7.4V 3. Capacity: 9000 Mah 4. Rated Speed: 130000 Rpm 5. Number Of Leaves: 13 Pieces 6. Charging Port Type-C 7. Gear: Continuously Variable Speed 8. Maximum Speed: 130000 Rpm 10% 9. Maximum Power: 120W 10. Usage Time: 6~10 Minutes 11. Surface Texture: Brushed Metal Texture Type: A-1 x Violent Fan+1 x Data Cable Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Material: PC+Metal colour: Iron gray Package Contents: 1 x Violent Fan 1 x Data Cable 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.