SUPERIOR-GRADE, 99.99%-PURITY COPPER CONDUCTORS DELIVERS BETTER AUDIO CLARITY & A MORE NATURAL-SOUNDING MIDRANGE; PRECISION-FORMULATED, POLYETHYLENE DIELECTRIC MATERIAL GENERATES BETTER HIGH FREQUENCIES & A MORE REALISTIC STEREO IMAGE; SPLIT-TIP CENTER PIN & 6-CUT, CORROSION-RESISTANT, 24K GOLD RCA CONNECTORS CREATE PRECISE CONTACT & INCREASED DURABILITY; DOUBLE SHIELDING PROVIDES MAXIMUM ISOLATION FROM ELECTROMAGNETIC & RADIO FREQUENCY INTERFERENCE; 100%-COVERAGE ALUMINUM/MYLARŪ FOIL SHIELD ISOLATES NOISE; TINNED, COPPER-BRAIDED SPIRAL SHIELDING CREATES A SECOND LAYER OF PROTECTION THAT ELIMINATES THE CORROSION COMMON IN BARE, COPPER-BRAIDED SHIELDING; RETAIL PACKAGED; 20 FT