it is not use for jamm the gps its just play sound that no one can hear it. and not jamm the wifi signal its just sound player.and also not jamm the cmda signal
it is onle for fun with the friends it the prank application.
frist select the category mean Wifi, Cmda, Gps and thr other page press the start button to play sound of prank not jammer the signal of any of these category.
3 different looking sources of ultrasound - 3 different ways of sounding!
Attention! Phone sig