This is a great jammer!!! Each frequency band is controlled by a separate switch
Review 10 Bands Military Cell Phone Jammer
Great!! Just what I need. So cool! It worked better than I expected!
It's very satisfactory to buy such a jammer at this price. Its performance far exceeded expectations.
It's a Christmas present for my friend. He likes it very much!!!
Everything is satisfactory except the transportation speed. Great product!!!