The Makita DBO380 Brushless Finishing Sander is powered by an 18v LXT Li-Ion battery. It has a 3-stage electronic speed control via push button and is connectable to a dust extractor. It also features a constant speed control and is complete with a brushless motor. There is an built in dust extraction mechanism and tool-less paper clamp. SpecificationsBattery Voltage: 18vBattery Type: Makita LXT Lithium IonOrbit Diameter: 2.0 mmOrbits per Minute: 4,000/ 8,000/ 12,000 opmPad Size: 93 x 185 mmPaper Fastening: Hook & LoopPaper Size: 93 x 228 mmSanding Stroke per Minute: 8,000/ 16,000/ 24,000 spmNoise K Factor: 3 dB(A)Noise Sound Pressure: 72 dB(A)Vibration (Sanding): 3.6 m/sec²Vibration K Factor: 1.5 m/sec²Net Weight: 1.9 - 2.2 kg Features & Benefits3-stage electronic speed control via push buttonBrushless motorConnectable to dust extractorConstant speed controlDetachable front gripIn-built dust extraction mechanismTool-less pape