Whisper BrioletteConsumable 7
Source Pathfinder #160: Assault on Hunting Lodge Seven
Price 55 gp
Weight negligible
Usage affixed to armor or to an outfit if a character has no armor
Activate 
Envision
Requirements You are an expert in Stealth
This teardrop-shaped gemstone has triangular facets and looks suitable for fancy attire, although close inspection shows that it's hollow. When it's activated, you can instantly impart up to 1 minute of speech (roughly 150 words) telepathically to any creatures you choose within 100 feet. You can impart this instantaneous telepathic message to creatures that you perceive and creatures Hidden to you, but you can't do so to Undetected creatures. Once used, the whisper briolette becomes unusable and subtly vanishes within the next few minutes, rather than crumbling to dust.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
ConsumableAn item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
DivinationThe divination school of magic typically involves obtaining or transferring information, or predicting events.
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
MentalA mental effect can alter the target's mind. It has no effect on an object or a mindless creature.
TalismanA talisman is a small object affixed to armor, a shield, or a weapon (called the affixed item). You must be wielding or wearing an item to activate a talisman attached to it. Once activated, a talisman burns out permanently.