The "SP16-2-65STR" Speaker Cable is a type of cable commonly used for audio applications, particularly for connecting speakers to audio amplifiers or receivers. The cable features multiple conductors (16 in this case) designed to carry audio signals from the amplifier or receiver to the speakers. Each conductor typically consists of multiple strands of copper wire (stranded configuration) for flexibility and improved conductivity. The individual conductors within the cable are typically insulated with a material such as PVC (Polyvinyl Chloride) to prevent short circuits and ensure proper signal isolation. The cable may also have an outer jacket made of PVC or other materials for added protection and durability. Speaker cables are available in various lengths to accommodate different installation requirements. They are commonly sold in pre-cut lengths or by the reel/spool, allowing users to choose the appropriate length for their specific needs.