Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Can I connect this to a standard wall plug? I want to have it plugged in with a switcher to activate. Sort of like a panic button in the house.
Document: Like i said...this thing is small...but you'd never guess that it could make as much racket as it does. No signal wire just a + & - connect it to a cheapo 500ma. 12volt wall transformer & it ear splitting time. Goin to use this as a outside siren to add to my x10 alarm system. Going to plug a transformer into a remote controlled unit for turning on & off lights with the alarm system.
In a manor of speaking, if you want your ears not to bleed, move on. IF you like PAIN then buy this, it will hurt you and any one near it.When I was looking around for an alarm to make the burglar want to drop the goods and plug his ears... WELL GUESS WHAT&#62;&#62;&#62;&#62;  this is IT, I am going to order one for each room in my home.
I give them only two star but not because they are bad products but because I buy them thinking I can apply for any sound and is not. this siren only work with specific amplifier  like car alarms, if you connect to a normal one you get nothing.
good and loud, expected louder as the way I understood it was suppose to inflict pain maybe if you was close by, not so but still loud enough to make someone leave that does not want to have attention paid to them.
Hooked it up to a co workers locker, worked like a champ now I just need people to forget about it so I can strake again.
annoying and just the way I like it.when hooked up (spliced in) with  an existing alarm systemit adds in a very annoying  sound that makes it very irritating,love itits worth it and doesn't have a cheap build quality.
I used this siren as a replacement to a 2006 Hyundai Elantra stock alarm horn. Loud as can be when your next to it and when the car hood is still opened. But once I closed the hood and backed away several feet and it sounded like a bicycle horn. I don't think your going to scare anymore away or find your car in a crowded parking lot with this siren. Changed it out for an OEM siren from a salvage yard, nice !! You get what you pay for..
This siren is really loud like a bunch of birds with a megaphone to your ear
Sounds like a dying bird. pretty funny actually. It should go inside the vehicle not loud enough to stay out.
Installed inside the car to deter break-ins, it is as load and unpleasant as it is advertised to be. Installed under the hood, it makes a big alarm sound, but it is easily put into an un-obtrusive location. Don't plan to use it as a horn. It sound too police like and you'd be arrested.
Answer: Not as-is.  It runs on 12v DC like a car battery.  You would need to use a 12v DC transformer "power brick" to change the 120V AC coming from your wall outlet down to a usable voltage.