TRIANGLE INDUSTRIES ni mtoa ya bidhaa na huduma kama vile spika,spika, mviringo,spika, kioo,spika, gorofa ya jopo,spika, pendant obiti,kipaza sauti kits, nyumbani mkutano,spika, mawasiliano ya simu, gari,kipaza sauti mbegu,woofers,kipaza sauti gaskets,kipaza sauti coil formers,madereva (magnetodynamic vitengo) kwa spika,kipaza sauti diaphragms,headphones, kusonga coil,headphones, kusonga chuma,headphones, mbili impedans,headphones, tropicalised,headphones, kofia ya aina,headphones, cordless,wachunguzi, binafsi (katika sikio), kwa ajili ya wanamuziki,hi-fi na mifumo ya stereo,abiria anuani ya mifumo ya ndege na treni.