POWERFUL SUCTION - The Desk Vacuum Cleaner Built-in 2000mAh lithium battery, rated output power of 8W. It can be used for 60 minutes continuously when fully charged.Two air vents help with heat dissipation. MULTI-FUNCTIONAL - This mini vacuum cleaner clean hidden dirt in keyboards, laptops, printers, copiers, camera equipment, makeup bags, office tools, cars, also for home sofa, etc. Effectively remove dust, small gaps of dust, bread crumbs, paper scraps, pet hair and so on. 2 VACUUM NOZZLES - 2 Different vacuum nozzles allow you to reach the tightest spaces, suitable for different cleaning environments. The flat nozzle can suck up little pieces of paper while the brush nozzle can dry dust.