A power exoskeleton is a power armor that looks like a human exoskeleton. This machine is used for lifting heavy things, assisting, aiding the survival of people in other dangerous environments and protecting the user. A wide medical market exists in the future providing mobility assistance for aged and infirm people. An exoskeleton use fuel cell, batteries, and internal combustion engine to power themselves. But these things are not currently widely deployed, because It's still very expensive. An exoskeleton is larger than human. If a human inside that exoskeleton, the human can run quickly, moving their bodies as a normal human, even they can lift 340kg (750pounds) object. In future there will be many of these thing so, it can help human alot.