- Antenna extension cable for devices with coax connection - 3 layers of screening - Tin-plated, copper-modulated HP oxygen-free copper conductor - High-quality special lines with coaxial structure - Ferrite filters - 24-karat hard gold-plated plugs - Multiple protection - PE foam insulator and triple highdensity total shield for complete elimination of interference radiation - Screening rate > 100 dB - For HDTV - 30-year warranty