RYOBI is a cordless electrostatic sprayer. The electrostatic spraying technology is activated by an on/off switch, allowing you to use it to spray water-soluble solutions or for chemicals best suited for traditional spraying. You'll be able to spray up to 30 tanks on a single charge, which is outstanding for continuous use without interruption. The comfortable backpack design allows you to use the sprayer with one hand. The adjustable 3-setting selector allows you to choose from multiple spray modes, just twist the nozzle to choose between Low, Medium and High. Low mode sprays 65 microns up to 2 feet, Medium sprays 85 microns up to 5 feet, and High sprays 160 microns up to 10 feet. The kit includes two 2.0 Ah 18V ONE+ batteries and an 18V ONE+ charger that is compatible with over 175 ONE+ tools.