What are resilient sound isolation clips

Resilient sound isolation clips sit between the building frame and the drywall. A rubber isolator breaks the rigid path so vibration does not travel straight through the studs. That is the acoustic bridge the clips are meant to interrupt.

Source copy lists uses on residential ceilings, studios, hotel or apartment demising walls, and mechanical rooms. A typical stack described on the live page is: structure, clips, hat channel, cavity insulation, then drywall screwed only to the floating channel.

HAGOIN lists RSIC-1 style clips and several acoustic hanger variants. Load ratings and dimensions on those SKUs should be confirmed against the drawing you intend to build.