Oil-impulse mechanism utilizes hydraulic oil unit to reduce impacting noise level, Low noise level ideal for use in sensitive environments (hospitals, schools and more) or as an operator-friendly solution to loud working environments, eXtreme Protection Technology (XPT) offers maximum protection against dust, debris and liquids for optimal performance in extreme conditions, 3 stage impact power selection + TEK mode to ensure precise fastening and prevent damage to fasteners, TEK mode reduces impact power during final stages of seating to prevent damage to fasteners, LED charge level indicator displays approximate remaining battery power, Brushless DC motor with high power to weight and size ratio.