2 Ortofon cocorde System in one nice Box ... Every professional ought to try the Elektro, a techno cartridge made by a team of highly qualifi ed technicians and experienced and capable DJs. Unaffected by extreme sound pressure and repeated vibrations, it has a high output. The musical performance is always fi rst-rate and the tracking ability of the spherical diamond stylus is quite good. The Elektro is a must-have for all scratch and back-cueing DJs!