dajiang lu's groups

Nowadays, more and more people drive to work, go home for business, travel, etc. It is also very important and necessary to protect privacy, so as not to be tracked, and to avoid being targeted by people who use GPS trackers. Know the owner's daily car and use the mini GPS jammer Very impo...

A technician from Luoyang Unicom said that in order to regulate the use of cell phone jammers, schools would first have to change their policies and not blindly rely on cell phone jammers. Since using cell phone jammers cannot be foolproof, some exam cheats, cell phone signal jammers cannot be contr...