Using replaceable modular joint design, a set of body can switch blower, dust brush, precision screwdriver a variety of functional head. Simple matte blue-gray body is small and portable, and one-key control is easy to use. It can not only clean up desktop gaps and floating dust debris, but also complete disassembly and maintenance of small objects. It can be adapted to home, desktop office and car scenes, and can meet various daily and fragmentary management needs with simplified volume.