Place minimal solid material in contact with cables to reduce RF noise. Great for audio and AC power cables. 8 Fog Lifters incl. in package (5.6” x 5.6”; 6.25” tall). AudioQuest: Reduce damage to audio by reducing RF Noise. Fog Lifters address this source by limiting coupling with the floor. A few inches make a big difference. Shielded cables still have noise potential due to capacitive coupling.