AudioQuest Fog Lifters Set of 8 Cable Uppers to Isolate RF NoisePlace an absolute minimum of solid material in direct contact with the cable Reduce the RF noise that capacitively couples into cables through all solid materials (carpet, stone, wood, etc.) Preserve low level audio signals For use with audio and AC power cables Each package includes 8 Fog Lifters Dimensions: 5. 6 x 5. 6 (footprint); 6. 25 (height) For four decades, AudioQuest has stated as clearly as possible, that pretty much all audio improvements