The rotating rate of this mini vacuum cleaner is 9000rpm, more effective than most cleaners with 6000rpm rotating rate. It works with low decibel, so it can be used beside a sleeping baby, meeting rooms, libraries and so on. This vacuum cleaner is detachable and reusable, easy to clean. Can be used for computer keyboards, bags, wardrobes, etc.. Item Name: Desktop Vacuum Cleaner Material: ABS Power Supply: 2 x AA Battery (Not Included) Rated Voltage: 3V Power: 3W Suction: 1000Pa Features: Portable, Mini, Mute, Strong Suction Diameter: 8cm/3.15" (Approx.) Height: 6.05cm/2.38" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: (Battery Not Included) 1 x Desktop Vacuum Cleaner 1 x User Manual