Upgraded Version Brush: This double action brush does not need a switch, just press the trigger, work quickly, release the trigger to stop working automatically, easier to use Higher pressure delivers heavier coats faster over larger areas Great for painting models, crafts, cake decorating, car graphics, temporary tattoos, fine art, nail art, etc. Better Control: It is a special "Double Action Airbrush", different from traditional Double Action Airbrush You can turn on and adjust different air pressure by pressing the on/off button You can then adjust the amount of paint by sliding the trigger back Internal mixing provides the most consistent, smooth results, since atomization of the paint works better this way This distributes the paint evenly for better control Longer working time and low battery reminder: The spray gun is equipped with a type-c charging cable, because of the upgraded circuit and battery, the working time can reach 1-2 hours after fully charged, others can only reach 30-50 minutes It is not recommended to use the spray gun kit while charging, when the battery is low, the air compressor will continue to vibrate slightly to remind you to shut down and charge