This high-quality 14-Gauge Oxygen-Free Copper Wire Lead-Free PVC jacketed speaker cable may be used to connect speakers to any receiver or amplifier and is rated for in-wall use.Product Details 14AWG x 4 Conductor Color: White Put-Up: 50 Feet Cable Technologies 14-Gauge Oxygen-Free Copper wire Round jackets Ripcord Lead-Free PVC Certifications UL CL3-rated for in-wall use FT4 RoHS What's in the Box 50' Spool of 14-gauge/4-conductor in-wall speaker wire Specifications Style: 75C 300 V Speaker Cable Size: 14 AWG x 4 Conductor Construction:ConductorSize: 14 AWG x 4 Conductor Conductor Material: Annealed Copper Stranded Conductor Construction (mm): 41/0.251 0.003 Approximate Outside Diameter (mm): 1.86 InsulationAverage Thickness (mm): 0.45 0.08 Minimum Thickness at any point (mm): 0.36 Diameter (mm): 2.70 0.2 Material: Lead-Free PVC Color: Core 1 = Red Core 2 = Black Core 3 = White Core 4 = Green Ripcord: Nylon (1000D) JacketNominal Thickness (mm): 0.55 0.08 Minimal Thickness at any point (mm): 0.38 Diameter (mm): 7.60 0.30 Material: Lead-Free PVC Color: White Electrical Physical PropertiesItem: 14 AWG x 4 Conductor Rating Temp Voltage: 75C 300 V Conductor Resistance (Ohm/Km/20C Max): 8.60 Insulation Resistance: 100 Mega Ohm/Km at 20C (Minimum) Dielectric Strength (Underwater): 500 V/1 Minute (No broken) Spark Test: 2.5 KV for 0.15 seconds (No broken) InsulationUnagedTensile Strength: 13.8 Mpa (1.41 Kg/mm) (Minimum) Elongation: 100% (Minimum) AgedTensile Strength: Unaged Min. 70% (1001C x 240 Hrs) Elongation: Unaged Min. 65% (1001C x 240 Hrs) JacketUnagedTensile Strength: 13.8 Mpa (1.41 Kg/mm) (Minimum) Elongation: 100% (Minimum) AgedTensile Strength: Unaged Min. 70% (1001C x 240 Hrs) Elongation: Unaged Min. 65% (1001C x 240 Hrs) Minimum Bending Radius: 15 * (Minimum) Bonding Force of Insulation: 3.40 (+10% -30%) (Kgf) Cold Bend Test: -201C x 4 Hrs (No crack)