Audio Cable,18 AWG Shielded Twisted Pairs, Non-Plenum
18 AWG Individually Shielded Twisted Pair
Aluminum (In) /Polyester Tape, 25% Overlap
Type CMas Specified in Article800 of the National Electric Code.
Balanced or Unbalanced Audio, Intercom Systems,
Security Systems, Background Music, and Power-Limited Control Circuits