Turbo fan for industrial use with 130000 RPM brushless motor Three wind speeds can be adjusted at will: blowing water, blowing air, blowing dust, and supporting combustion. You can control the wind power<br> Super long battery life. The first gear can be used for up to 3 hours. Built-in two 21700 lithium batteries with a battery capacity of 7.4V-4000mAh, which can last longer<br> 52m/s Super Strong Wind Brushless high-speed motor with a rotation speed of up to 130,000 rpm, which can generate a strong wind speed of up to 52m/s. Three-speed speed adjustment gives you a different experience<br> Powerful magnetic air nozzle click! It closes as soon as it is applied. Strong magnetic force, stable adsorption and will not fall off<br> Multi-scenario use, pet drying, barbecue combustion, manual dust blowing, keyboard dust removal, camera dust blowing<br> Name: Violent Turbo Fan<br> Working voltage: 6-8.4V<br> Battery capacity: 4000mAH<br> Charging time: 2.5h<br> Battery life: 3h<br> Colour:Gray/Black<br> Material:ABS<br> Package Contents:<br> 1 x Violent Turbo Fan<br> 1 x Air Nozzle<br> 1 x Charging Cable<br> 1 x Chinese and English instruction manual<br> Only the above package content, other products are not included.<br> 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.