Palantir

Palantirs are objects of glass, typically in the shape of a sphere, which have been enchanted by the foresight and communication enchantments. Once enchanted they have a cloud inside which rotates in a swirl pattern. Then it can be used to make a connection with another Palantir, after which it serves kind of like a video call. They were invented by the Cloudrim Tribe who used them as a means of communication. Nowadays they are very rare, and sought after very much.