size：17.5*5.5*4.0CM USB line length：1500mm Working line length：1400mm Features Enviroment:Granule shape dust,hair,wastepaper pieces and something like that Standard rotation speed：11000rpm/13500rpm Accelerate speed：22000rpm/23500rpm Plug&play,easy using OS :IBM PC / MAC compatibles USB supply power Compatible with all kinds of computers and relevant devices Product description: Delicate design,exquisite appearance,especially suit for office using, 1.5m spring line can meet any kind of computer, long and short adjustable; Import ABS,equality and exquisite grain,necessary for Senior office using and White-collar house using, strong clean ability can satisfy you with different occasions.Brush when can not be sucked and nothing left; Various colour selection; The broad 3*3CM LOGO area ,greatly convinent suppliers and distributors to choose as promotion and brand building gifts Pay attention Insert the vacuum direct into the USB port have no damage to computer, while please don’t pull the USB plugs off when using, if long time no using ,pull the plug out,don’t use the accelerate function for long time and the consistent using time would not exceed 3 minutes. Operation procedure MV-03 operation procedure：Insert into the USB port==press the electricity button= indication light on and the motor begin to rotate and work, when the power is not strong enough, press the accelerate button and replace the brush or sulk tube according to the area.After using, cut the electricity off and fetch the front storage out to swill dust. Certificate standard:ROHS CE