Variable-speed dial settings from 1,400-2,000 RPM. Brush-type skirt surrounds sanding pad, preventing gouging of wall joints and aiding in dust collection. Motor located on opposite end of handle from sanding head, providing balance and control. Built-in dust collection hose. 1-1/4" vacuum hose is 13' long so that large areas can be sanded in one set up. Articulating sanding head allows user to sand wide area without changing positions.