20V, Max XR, Lithium-Ion, Brushless, 1/4" Impact Driver Kit, Brushless Motor Delivers Up To 57% More Run Time Over Brushed, Compact, Lightweight Design Fits Into Tight Areas, 3 LED Lights With 20 Second Delay After Trigger Release, Provide Visibility Without Shadows, 1 Handed Loading 1/4" Hex Chuck Accepts 1" Bit Tips, Includes: (2) 20V Max Lithium Ion 4.0 Ah Battery Packs, Fast Charger, Belt Hook & Kit Box.