300000 RPM turbofan, brushless motor, powerful. Strong dust removal, handling a series of debris such as accumulated dust, sand, hair, etc. Built in 21700 lithium battery, with long battery life and up to 2 hours of low-frequency use. 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. Battery capacity: 8000mAh Built in two 21700 batteries Wind speed:58m/s Working voltage:7.4V Charging time:3-4 hours Wind speed gear:infinite speed regulation Electric tuning:30mAh Color: Material:plastic Package Contents: 1 * Turbo Fan 1 * Vacuum kit 1 * storage box 3 * filter cartridges 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.