ON THE PHYSICS OF GSM JAMMER AND ITS APPLICATION In addition, battery life as well as the array are much more superior to the smaller sized ones. They can last around 2-4 hrs and cover about 40-80 meters of vacuum. A jamming device typically comes unassembled, so the customer needs to construct it himself. Constructing Read more about ON THE PHYSICS OF GSM JAMMER AND ITS APPLICATION[…]