Cordless design, a perfect solution to the problem that the power cord is not long enough. Quickly cool the air inlet and heat dissipation air inlet to facilitate heat dissipation and ensure the service life of the machine. Both the machine gun body and the nozzle can be quickly disassembled, which is convenient for sequential cleaning and convenient storage after the operation is completed. One-key switch, safer and more convenient power supply accords with ergonomic design. Suitable for painting doors, windows, walls, fences, floors, ceilings, floors, cabinets, household furniture and other objects.