This is my second cell phone jammer. My first one got hit and smoked by lightning during one of our infamous Florida thunderstorms. It was the worst loss I've suffered since my dog passed away five years ago. I had to have another one, and once again, Perfectjammer and my credit card made it happen. I love this thing, and I won't be without one. Again, this is my second. I recommend it 100%. If it was lightning-proof it would be perfect.