This small disk affixes itself to (or can be removed from) any surface with but a simple command word. If that surface is a portal (door, window, box lid, curtain of beads, or any other such opening), it silences any sound of opening the portal, just as if the 0-level spell silent portal had been cast upon it. The disk operates once per day.
Caster Level: 1st
Prerequisites: Craft Wondrous Item, silent portal Market Price: 360 gp; Weight: -