Shielding

Shielding for guitar cavities to help reduce unwanted hum and feedback.

Kill the buzz.  The shielding in the pickup cavity acts like a Faraday Cage around the electronic components (basically a grounded conductive enclosure) pots, switches, wiring and pickups etc… The electronics inside your guitar act as antennae for nearby electrical equipment and so unshielded guitars are vulnerable to the inevitable feedback.