Planet Waves Circuit Breaker Instrument Cable, 10 feet In=Out Technology: Low capacitance for pure signal transparency 24k gold-plated plugs provide superior signal flow and corrosion resistance Integrated Mute Switch for silent instrument changes Straight-to-straight 1/4-inch plugs for standard input jacks Limited lifetime guarantee The new mute is only engaged when it is held down and stops muting the signal once it is released.