K&K Sound Volume Control Add-On
The Volume Control is a non-destructive, plug-and-play addition to any single-source passive internal transducer system, like a Pure Pickup, FanTaStick, Twin Spot, or Big Twin.
Simply unscrew the existing endpin jack, remove it from the endpin hole, and plug it into the 1/4" plug of the Volume Control Add-On. The 1/4" plug has a self-adhesive fastener, which can be secured inside the guitar. The lightweight thumbwheel control mounts with a peel-and-stick installation to the inner edge of the soundshole. Mount the new endpin jack into the endpin hole, and you're done!
This passive volume control works without a battery. It does not boost the volume, but it allows you to turn the pickup signal down.
For more information, click here to visit the manufacturers website.