Stummer

The reverse of a screamer, stummers generate sound waves to cancel out ambient sounds and noises made by moving personnel in a small area. A character carrying an active stummer gains a +30 to Silent Move Tests. The device may also be used as a countermeasure against vox-bugs and other surveillance attempts. A stummer typically has enough power for 20 minutes of continuous use before needing to be recharged, a process that takes about 1 hour.

Stummer

The Fate of Old Andrukah TheTaleWeaver