This is a triggerable muzzle for your mind.
You need either a string, cuff, or bracelet you wear while wearing it. This will become your mental muzzle. Whenever you wear it, your mind will be muzzled.
You will become very calm and tame. It will be impossible to feel intense negative emotions like anger and hate. Your mind will be very quiet. This will however not dumb you down, just make your mind quiet and passive. If someone asks you a question you will be able to answer. You will just not act on your own. It will also make it very pleasurable to go along with orders and suggestion.
This file contains safeties so if anything really negative happens you will instantly revert, even while wearing the trigger.