2 x 4.0Ah XR Li-Ion Batteries &amp; Charger<br>Power Output 250 Watt<br>No Load Speed: 0 – 2300 rpm<br>Impacts per Minute: 0 – 2700 rpm<br>Max. Bolt Diameter: M16<br>Weight: 1.62 kg<br>Length: 147 mm<br>Hand/Arm Vibration – Impact: 11 m/s²<br>Uncertainty K 1 (Vibration): 4.9 m/s²