... ROHS,CE certificate 2. Free Samples 3. Professional QC transparent audio speak cable 2x4mm2 Description CONDUCTOR:OFC-OFC(Oxygen Free Copper ... for fixed, protected installation of Wiring Burglar Alarm, Public Address Systems,Intercoms, Telephone Stations, Speakers, Instrumentation, Control and other Low ... insulated for intruder alarm systemsNEC 725/800: CM / CL2, transparent audio speak cable 2x4mm2