High-Quality Construction: 18AWG x 4 Conductors, Made with 100% bare copper for excellent conductivity, ensuring 1000ft of optimal audio and signal quality for your security and alarm systems. Shielded Design: The stranded shielded construction minimizes interference from electromagnetic and radio frequency, providing clear signals for CCTV, access control systems (ACS), and audio setups. Durable Insulation: CMR-rated insulation protects against heat and fire, making it suitable for both indoor and outdoor installations, while ensuring longevity and consistent performance. Convenient 1000ft Pull Reel: Comes rolled with an easy-to-pull reel for hassle-free installation, allowing for smooth cable dispensing and reducing tangling or damage during setup. Versatile Applications: Perfectly designed for use in various low-voltage applications, including CCTV systems, alarm systems, and home theater audio setups, enhancing both security and entertainment experiences All Lion Beam Cables are certified and protected, made of 100% Bare copper. They are CSA and ETL Certified, TAA and RoHS Compliant, and flame-resistant according to CMR standards (IEC 60332-3 Cert). Each cable is barcode traceable, and it comes with a full 25-year guarantee. LION BEAM 18/4 Low Voltage Cable 1000ft Reel - Stranded Shielded 100% Bare Copper Audio and Security Wire CMR insulated, 18AWG and 4 Conductors Bulk Cable for CCTV, ACS, Alarm and Audio Systems