Meet the UniTerra Nomad: a portable manual lever espresso machine that lets you prepare espresso and other coffee drinks anywhere. It does not require electricity, batteries, or gas cartridges to work. The device is compact and lightweight, so you can take it with you anywhere you go.
Nomad is pretty easy to use. Just add your ingredient and hot water and start pumping the lever. You can use the pressure gauge to adjust the speed and reach the optimal brewing pressure. The above video shows how this espresso maker works.