Constructed to minimize user fatigue. Dual speed range, 0-450/0-1,500 rpm, delivers optimal performanceIncludes two batteries, one hour charger, double ended screwdriver bit and kit box. Contractor bagCompact size fits into the tightest conditions.1/2-inch single sleeve key-less ratcheting chuck for tighter bit gripLightweight design (5.2 pounds) minimizes user fatigueHigh performance motor delivers maximum power of 380 unit watts out. Battery Amp hours - 1.2.