(Tool only- no batteries, no charger) 4-Pole Open Frame Motor � More power in a smaller size. New ergonomic design � for outstanding comfort. Durashield housing � constructed to withstand jobsite conditions. Optional Flexible Power System (FPS) Provides Choice of Max Run Time or Minimum Weight. LED Light- Great for dark or enclosed areas. Soft-Grip Wrapped Housing - Fits comfortably in hand for extended working time. Variable Speed Trigger- Provides maximum control. Bosch Advanced Lithium-ion Technology delivers optimized performance through Electronic Cell Protection (ECP), Unique Pack Design which keeps the battery cooler, and Electronic Motor Protection (EMP) which protects motor in heavy duty applications.