Pressure upgrade: Water oxygen meter upgraded the design of spray gun. Let the pressure of our water oxygen meter reach 21-28 psi. An increase of 55% compared to similar products.Quick Charge: The battery capacity is up to 600mAh. The charging time is only 50min. Use the USB socket to charge. Note: If there is a problem that can not be charged, it is a failure of charging cables. If you have this problem, please contact us. We will replace a new airbrush sets to you free of charge.Replaceable nozzle: The nozzle can be disassembled to replace other nozzles. Can be applied to more usage scenarios.Create fun for life: Make yourself beautiful and create a picture for yourself. Make a cake for your lover. Create your own model. Bring exquisite gifts for your girlfriend.