Current search:Returned all devices in tags: virtual reality
From the Glossary:

Virtual Reality

Tools to be used in a virtual world

#23 Reality Checker

An exclusive device for VR inhabitants. Sits on the head, and using a rotating lidar, motion sensor and microphone shows what is happening outside of virtual reality. (Are there people nearby, are things moving toward you.) Has a pixel display that sends out messages if someone is near. Like "I am engaged in a very important conversation right now" and "please call back in virtual reality" also "Out for a walk."