LED Charge Level Indicator, Variable 2-Speed, Reversible. High Efficiency, Compact Design. eXtreme Protection Technology (XPT) offers maximum protection against dust, debris and liquids for optimal performance in extreme conditions. LED charge level indicator displays approximate remaining battery power. NEW Battery Protection System provides Over-Discharge, Temperature and Circuit Protection for enhanced performance, battery cycle life and overall battery life. 21 Clutch Settings deliver up to 750 in. lbs. of torque. All Metal Gears for more efficient power transmission.