[hardai]

Most jammers have about a ten foot range, and are only going to serve to shut down the self-important blabbermouth who is rudely forcing himself into your personal space with his all too personal conversation. The jammers people are going to keep in their pocket or purse have a very limited range, and aren't going to shut down the city block. These claims are just scare tactics. They are made to take back peace and quiet in your personal space. As a side note there are ones that shut down city blocks, and our government uses them, to protect the president, and for other things. They don't exactly fit in your purse either. Real emergency workers use powerful two way radios that will not be affected. Doctors dealing with emergencies are in the emergency room. If someone needs emergency help he isn't going to be calling his doctor who is currently in the restaurant next to you and your cell phone jammer. He is going to call 911, or the emergency room, or the fire department.