Brainwashing device
From The Stargate Omnipedia
Multi-pronged handheld Goa'uld device used in conjunction with a Tok'ra memory device, used to torture a subject until the individual allows his or her mind to be pliable. A green indicator on the top of the unit marks the charge (or intensity). The device can work within several meters of the subject.
KEY EPISODE
Stronghold - Baal orders his Jaffa to use the brainwashing device on various members of Jaffa parliament to sway them toward his beliefs.