USB CHARGE MODE: There is no need to connect the mini airbrush to any power supplies because it is cordless. You can charge it by computer, charger or power bank just via a USB cable. The duration of working hour can last up to 40-60 minutes after it is fully charged. PORTABLE MINI AIRBRUSH KIT: The one-handed compressor spray gun is so small that you can put it in your backpack or just in your pocket. This portable feature which can help you do your creative DIY work without charging all the time is of great convenience. HIGH POWER: As the intensity of pressure of the airbrush gun reaches up to 25psi and the air volume comes up to 7-7.5L, the airbrush gun can spray more liquid or pigments, delicately and uniformly. You can spray something like lotion, milk and liquid foundation. WIDESPREAD USE: This portable cordless mini airbrush gun kit is in possession of a wide range of application and it can be widely used in cake decoration, art painting, beauty make-up, nail art, handicrafts, model coloring, illustration and temporary tattoos. I It can be used in many situation. UPGRADED AIRBRUSH SET: It comes with a complete set of airbrush cleaning tools. If your spray gun is clogged, all you have to do is to use the brush with detergent and just spray it into airbrush gun or the cup. You dont need to spend extra money and time buying airbrush detergent any more.