The DPV300 is a cordless sander and polisher which runs on a Makita 18v LXT battery. It has two speed settings and variable speed control along with a constant speed function to maintain consistent performance under load. The trigger can be locked on and restart protection ensures it can't start up unexpectedly (if for example the battery is swapped out). Features & BenefitsVariable speed controlMechanical 2-speed controlConstant speed controlBrushless motorTrigger lockLock-on switch to reduce user fatigueAnti-restart functionErgonomic soft grip SpecificationsBattery Voltage: 18vBattery Type: Makita LXT Lithium IonPad/Disc Diameter (Hook & Loop type): 80 mmPad/Disc Diameter (Twist on/off type): 50 mmBacking Pad Diameter (Hook & Loop type): 75 mmBacking Pad Diameter (Twist on/off type): 46 mmNo Load Speed (Sanding): 0 - 9500 rpmNo Load Speed (Polishing): 0 - 2800 rpmNoise sound pressure 73 dB(A)Noise K factor 3 dB(A)Net weight 1.3