A multifunctional innovative three-in-one Not only is it a mini vacuum cleaner, it is also a duster and a hand pump. One end of the machine is connected to the suction nozzle and the vacuum tank, turning it into a walking hand pump, and the vacuum storage bag is vacuum sealed. The other end is connected to a nozzle to blow away dust. Its favorable price and multiple combinations make this keyboard duster a perfect gift for family or friends. Various accessories for different occasions It can be used as a keyboard cleaner and to clean the interior of cars. Not only can it tackle debris in hard-to-reach places, but it can also handle cracks or camera lenses. (The mouthpiece and hose are packed together, please don't miss it when opening the package.) Reliable lithium battery technology for long battery life The dust collector has two built-in 2000mAh lithium batteries. It has passed 500 charging cycle tests and can provide a long working time. It only takes 3-4 hours to fully charge