Really powerful and work fine to block the mobile phone 4g,3g and gps signals at the same time.At least 10 meter,very good! Date Added: 05/20/2015 by Janise Koestner
I can select and decide the jamming frequemcy band and the jamming distance via this High Power Cell Phone Jammer, really perfect with powerful shiedling radius. Date Added: 05/17/2015 by Theodore Dwyar
Have used this jammer for a period of time, and it always works great and stable. I like it will come and buy again! Date Added: 05/17/2015 by Magnolia Ammar
Just as it is described, it can block all the signals and the jamming effect is good. It owns both high quality ang cheap price,thanks a lot!!! Date Added: 05/14/2015 by Nicholas Crocitto
