A few steps that help you build cell phone jammer for sale
First of all, you need to select the working conditions of the WiFi mobile phone jammer for sale, help you to identify mobile phone shielding. Then you may put the mobile phone jammers are placed on the table or on the wall.
After that, you turn off the power button Wholesale Cell Phone Jammers, then turn on the power. Then you should press the button of mobile phone jammers, so they start to work. All mobile phone here will not receive any signal, cannot make or receive any phone calls.