Features: 
Mechanical 2-speed gearing covers a wide range of drilling, driving and hammering applications
Ergonomic design of grip for driver-drill applications
Battery protection circuit to provide protection for battery from potential damages arising from overdischarge, etc. 
LED job light with pre-glow and afterglow functions to illuminate the work area for increased visibility
All metal gear construction ensures high transmission durability
Lightweight design for reduced user fatigue