i just picked up this for my game room...
Nothing fancy but a deterrence if some f@ck breaks into the basement, this would be set up in the corner of my game room shooting out into the hall, has a range of 23 feet.
Surprisingly the sound these things produce is instant headache for me, hopefully i can secure it really good to the wall so it wont be ripped off and smashed to the ground in a time i really need it.