20V Li-ion Cordless Impact Wrench brushless motor no speed:0-2650rpm/0-3100RPM. 3000mAh li-ion battery 2pc. 2h fast charger .6pcs long 80mm sockets(10/12/14/17/19/21mm) .LED work lamp Forward/Reverse Function Max Torque: 320 N.m Our Impact Wrench is for domestic use, for example for your carpentry area at home, in work with bolts and nuts, you can also use it to make adjustments to your tires or tire changes, it can also be used to mount television rack installations, boards or to extract rusty screws. Warning our impact wrench is not for rough use, do not subject to industrial work as it will not be able to meet expectations About the battery, it must be charged for 1 hr to offer a usage time of 50 minutes, the duration is 50 minutes in a standard mode, however, if the power is increased it will lower the battery life to 30 minutes, and when you have 5 min duration will decrease performance. Note that the battery was designed to be used in standard mode. Our recommendation is to use the maximum power when the battery is freshly charged so as not to experience power loss.