Features: 1) Professional design (with feature patent right) 2) Patent motor, more powerful, lower noise, lower-rise temperature 3) Stable suction power 4) Particular 3 cyclone cleaning in 1 system accelerates the air by centrifugal force 5) With HEPA filter 6) No bag, more hygienic and more economical, also much more effective (no accumulation of dirt in the bag to inhibit air circulation) 7) Automatic cable-roll-up 8) Changeable speed 9) Voltage: 100 - 240V 10) Power: 1,200 - 1,800W