Matrix-affiliated groups have also worked to advance power company interests in Arizona, Louisiana, Mississippi, Georgia, and in front of the Environmental Protection Agency, public records show.

Matrix Industries has unveiled the second generation of its body-heat-powered smartwatch that you don’t have to charge. As long it is touching your skin, the PowerWatch 2 doesn’t need a new ...

Unlike most smartwatches, the Matrix PowerWatch doesn't require a charger. Instead, it relies on body heat for power.

The Matrix watch is the first piece of consumer technology attempting to use this power-generating concept. It's still really low-power: It can't track heart rate, just steps and time.