Auto Airbrush & Battery Level Display: This dual action airbrush does not need a switch,just press the trigger to work, air will be sprayed, move the trigger back, the liquid will be sprayed, you can freely control the liquid output The amount of paint will automatically,stop working after releasing the trigger. In addition, there are 4 indicator lights at the bottom of the air compressor to display battery power. Before using the spray gun, please fully charge it. Higher Air Pressure & Larger Airflow: The air pressure has increased by 50% compared with similar airbrushes on the market, it is higher up to 20-30psi and the air flow reaches 6-8L, others are only 12-15psi, 6L. The nozzle of this airbrush is only 0.4mm, so it can only spray watercolor pigments, inks and dyes, as well as properly diluted paint, NOTE:Please dilute acrylic paint with distilled water or or with good quality commercial thinners specifically made for acrylic paints. Faster Charging Tech & Longer Working Time: The airbrush gun comes with a type-c charging cable, because of the upgraded circuit and battery, it supports 2A fast charging tech, recommended to recharge it via a DC 5V-2A charger, it is much faster. Working time reaches 1-2 hours after fully charged, others can only reach 30-50 minutes. It is not recommended to use the airbrush kit while charging, nor is it recommended to use a charger less than 1A or more than 2A.