"Small black box with four LEDs, an aerial and some sort of terminal."
A: "After some short and uninteresting research, these contain theremin circuits which are conveniently set off by handheld 2 way radios. The inventor used a toy kit in the original. At least the “ghosts” can mimic vintage horror movie sounds as they haunt you"
It's a toy missile. I had a million of these in the 80s when I was all about Transformers. The color also makes me think it's part of a toy. You would insert it into a launcher, a spring would get stretched out as you as you loaded the missile, and once it's fully inserted that hook on the end would catch onto something securing it in place. You would press a button somewhere on the toy releasing the catch, and the tension in the spring would send it flying.
what do you expect. they are anecdotal answers from reddit.
Close your air/sound hole thingy please.
Are you high?? Laser alarms were HUGE for a couple of decades.
For Bloody Marys.
replace it. costs nothing but will keep your mind at ease