i have (and bought my g/f) a Gorilla alarm. its simple......turn it on, turn it on "shock" (extremely sensitive), and turn it off. i dont need perimiter alarms and SWAT and helicopters showing up......i simply wanted it to make lots of loud noises and it does that perfectly for $93 shipped. its been said on here many times....if a thief wants it...they'll get it. i got a simple alarm that'll atleast make people look their way as their making off w/ my ride so i can maybe get a description, lol.