Features/Functions: Power: 30W Input voltage: 110V-240V AC Clockwise and counterclockwise operation. Direction reversal switch Speed: 0-35000RPM, Speed adjustment knob Smart warning light: displays different color lighting: Blue - forward mode, Red - reverse mode. Accessories - drill bits in a practical box stored at the bottom of the device and also serves as a support base for the pen. Dimensions: Main unit: 11.2*11.2*4 cm Pen: 13.7*3 cm