The Jizai Arms system consists of a backpack-like base unit with sockets for up to six arms, and interchangeable hand modules depending on the task. The arms can be controlled by the user, or remotely.

The team from the University of Tokyo says the system “has been designed to facilitate social interaction among multiple users”, who can even exchange arms.

In a research paper, they write: “Through our role-playing sessions, we observed that our bodies were able to accurately perceive the attachment/detachment of the arms, and we particularly felt a significant impact when detaching or reducing the number of robotic arms worn.”

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