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. Brushless DC motor generates less heat buildup and is ideal for prolonged use in manufacturing / production applications. Battery protection system provides over-discharge, temperature and current protection for enhanced performance, battery cycle life and overall battery life. LED job light with pre-glow and afterglow features. Ergonomic soft rubber grip design for vibration absorption and comfortable operation.