Hand-held GPS GSM 3G 4G WiFi Jammer Portable

Excellent design and reasonable price, two of them and both very useful. The feature is so powerful, I've used it and I'm so happy with this excellent one !!

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.