The Planet Waves Circuit Breaker plug has fail-safe operation to
save your equipment from loud pops and squeals when you change guitars
with a live amp. When the button is pushed, the cable shorts while
remaining plugged into your guitar, making on-stage guitar changes a
snap, and eliminating any chance of sound bursts. Once the cable is
shorted, remove the cable from the guitar being used and plug the cable
into the next instrument. Press the button again to re-activate the
cable signal. 

It’s that easy!!! Each plug is plated with
24-karat gold. The Planet Waves Circuit Breaker cable is simply the
safest way to prevent damage to your equipment live or in the studio.