Strong drive, high-speed brushless motor, speed of 130,000 rpm, service life of 16 years, dynamic balance of 1 mg Violent turbo fan output speed per minute, continuous wind pressure of 180g unchanged Built-in two lithium batteries, battery capacity 7.4V-3000mAh, longer lasting 150% over-temperature protection Wide range of use scenarios, blowing wind/snow/dust, barbecue combustion Product name:Violent turbo fan Rated output:15W Charging port:type-c Gear:brushless motor Voltage:7.4v Capacity:8000 mAh Working voltage:13000010% per minute Maximum power:150W High-speed motor:aviation aluminum alloy Speed:130,000 revolutions per minute Use time:11-30 minutes Number of fan blades:13 pieces texture:metal brushed process Colour:Silver Material:PC Package Contents: 1 * Violent Fan 2 * Nozzles 1 * Charging Cable 1 * Carrying Bag 1 * Lanyard 1 * 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.