Here's what MXR says about the 20ft Stealth Instrument Cable:

MXR Stealth Series Instrument Cables make switching instruments a quiet and frustration-free experience. We use an integrated "silent" switch to eliminate any unpleasant noise when you plug or unplug your cable, and thanks to optimal capacitance and beefy 20 AWG oxygen-free copper conductors, you'll hear your tone at new levels of volume and clarity. Stealth Series Cables are perfect for when you're plugging directly into an amp or DAW and you need tonal purity. Available in 10' and 20'-ft lengths. Trust your signal to MXR, the company that musicians have relied on for quality stage and studio products since 1972.