Hmm. It has a WiFi signal on the top. Seems to have a spring inside, like what would go behind a battery. Is it a portable WiFi range extender or hotspot?
Good catch, I never saw that from my phone but now I do. Certainly not a light. The springs inside have me at a loss. It doesn't appear to have any other buttons on it so while it looks like a mouse "handy" I don't know.
