Digital Optical Audio TosLink Cable Molded M/M, 6 FT / 1.8 M For Polk Audio Signa S1 S2 S3 UltraSlim TV Sound Bar Toslink Digital Audio Cable provides you the cleanest possible signal, even at extreme volume levels. Optical cables transfer the signal using light; thus completely eliminating any chance for RFI, EMI or ground loop interference. Connectors: Toslink Male to Toslink Male Cable Length: 6 FT / 1.8 M OD 5.0 Cable Color: Black Package Included: 1 unit Digital Optical Audio TosLink Cable