These are Pro-Grade, balanced microphone cables, commonly used to carry low-level signals.
Microphone outputs must be amplified and when a microphone feed is amplified, any interference will also be amplified. Stage Right by Monoprice STARQUAD XLR Microphone Cable, Optimized for Analog Audio - Gold Contacts, XLR-M to XLR-F, 24AWG, 35FT, Black This arrangement results in a greatly improved rejection of electromagnetic interference, compared to standard two-core balanced mic cables.Introducing Stage Right™ by Monoprice STARQUAD XLR Microphone Cables.