The Viking Chainblade — another one of my motorized swords, complete with sound effects. Like the rest of my chain-weapon lineup, it's app-controlled through AlexGeekApp: you can adjust the volume, flip the rotation direction, and dial in the rotation speed, as well as keep an eye on live telemetry and battery charge. The charge level is also shown on a small display built into the handle. It's powered by 8 AA batteries, and the blade length was designed to match the true scale of an Astartes — because the goal, as always, was something epic and authentic, not just convenient to carry. There's motorized power behind every swing.