Telepathy

Telepathy is a magical ability that allows a creature to communicate mentally with another creature within a specified range. The contacted creature doesn't need to share a language with the monster to communicate in this way with it, but it must be able to understand at least one language. A creature without telepathy can receive and respond to telepathic messages but can't initiate or terminate a telepathic conversation.
A telepathic creature doesn't need to see a contacted creature and can end the telepathic contact at any time. The contact is broken as soon as the two creatures are no longer within range of each other or if the telepathic monster contacts a different creature within range. A telepathic monster can initiate or terminate a telepathic conversation without using an action , but while the monster is incapacitated, it can't initiate telepathic contact, and any current contact is terminated.
A creature within the area of an Antimagic Field or in any other location where magic doesn't function can't send or receive telepathic messages.