Endotronics rhymes with:
audiotronics, audiotronics, centronics, electronics, electronics', endotronics', flextronics, microelectronics, photronics, plantronics, tektronix, telectronics, vitronics
Endotronics sounds like:
endearing, endothermic, endotronics', endotronics's, endurance, enduring, entering, entrance, entrances, entrench, entrenches