1) scope of application: simple finished office desktop, furniture surface, computer keyboard, car cushion, dust, clean, and 2) the suction is strong, with two grain of no.5 batteries, a small turbine straight design improvements and strong magnetic absorption 9700 transfer of high-speed motor, small to ash, dust and rubber slag, hair, paper scraps, such as 3) convenient cleaning: as long as gently down the bottom cover, trash can, completely avoiding dust secondary flow clean desktop environment cause health hazards