UL LISTED & CL3 RATED: This 16 gauge speaker wire 16/2 is UL Listed and CL3 rated for in-wall and in-ceiling audio installations. The 2-conductor, 100 ft Black speaker cable uses a flame-retardant flexible PVC jacket that helps route cable through wall cavities, studs, and tight turns. 99.9% OFC HIGH-STRAND CONDUCTORS: This 16/2 speaker wire uses 2 conductors, each built with 65 strands of 0.16 mm 99.9% oxygen-free copper. This 16 gauge OFC speaker wire combines flexibility with dependable conductivity for home theater, whole-home, and speaker installations. OUTDOOR & DIRECT BURIAL: This 100 ft 16 gauge outdoor speaker wire uses a UV-resistant, weather-resistant PVC jacket designed for indoor and outdoor speaker runs. It supports direct burial speaker wire installations for landscape speakers, patios, decks, and whole-property audio systems. SEQUENTIAL FOOT MARKERS & POLARITY ID: On this 16/2, 2-conductor speaker wire, printed foot markers help plan the 100 ft cable run and cuts without repeatedly using a tape measure. Red and black inner conductors make positive and negative polarity easy to identify during installation. EASY TO CUT, STRIP & TERMINATE: Flexible stranded speaker cable is easy to prep and route. Use this Black 16 gauge speaker wire with compatible 16 AWG banana plugs, spade connectors, bent pins, amplifiers, receivers, and speaker terminals. Model: 16/2; 2 conductors; 100 ft; Black jacket.