I appreciate such a well-built product. It works exactly as advertised and the only reason I didn't give it 5 stars is because the side switches are a bit small. You have to use a pen or the tip of your fingernail to turn the different channels on or off, but this is a minor issue. Good product!
Bestsellers, they offer powerful products and good quality. I will buy more jammers when I return from the trip.
I tested it the day I received the product. I sat next to it and couldn't connect or make calls. The performance is really good.