Specification: Motor Type: Brushless Voltage: 21 V Power Source: 48V DC Power Source: Battery/Cordless Maximum Torque: 330N M. Battery Capacity: 3000mAh(2pcs) No-load Speed: 3200 /min Battery Capacity: 3000mah Impact frequency: 0.3200 Wrench Head Size: 1/2inch (12.5mm) Charging Input Voltage: 100-240V 50/60Hz Charging Output Voltage: 48V 3000MAH Wrench Socket: 4-24 m(only included 22mm in the package) Charging Input Voltage: 100-240V 50/60Hz Charging Output Voltage: 48V 3000MAH Features: High-quality motor, small volume, heavy torque-330NM Tungsten carbide steel shaft, aluminum head, strong and durable Steeples variable speed switch, press to adjust the speed efficiently Large vents efficiently improve heat generation for long-term use Ergonomic soft-grip handle & integrated LED work light, beautiful and durable Large capacity lithium battery, overload protection, fast charging, long lasting power What's in the box 1 x Impact Wrench 1 x Power Charger 2 x 48V 3000mAh Li-Ion battery 1 x 22mm ½ inch Sockets 1 x User Manual