|Manga Debut||Chapter 27 (Super)|
The Communication Device is a creation of Whis that allows one to communicate with him.
This device is a communicator given to Bulma by Whis to make communication between her and the angel easier — usually for food. The device works as a video communicator, allow Bulma to show Whis, or anyone looking through the angel staff, something from a far away distance, as well as speak through it. Gokū himself possesses one in the manga.