2G 3G 4G adjustable mobile phone signal interference company, it effectively shields the transmitted signal. In reality, domestic mobile communication in China is a developed high-tech product. The products developed by us, production, sales and imported parts all adopt foreign advanced technology Between the microwave signal stand and the earpiece. This mobile cell phone jammer product adopts imported parts, mechanical patch welding technology, mass production line, efficient and strict control, to ensure product quality, stable performance and long-term durability! Wait, let us know your whereabouts! Only GPS satellite signals cause interference, and will not affect the normal response of the mobile phone. Equipped with strict mobile phone jammer equipment inspection. Radio jammers are small in size, high in output, light in weight, and cover a large area. 3G/4G mobile phone jammers are easy to carry. Effective preventive measures for mobile/car GPS satellite positioning systems! No longer protected by the whereabouts of God. Strictly test the technical indicators of the National Radio and Television Product Quality Supervision and Inspection Center to meet the allowable environmental electromagnetic radiation intensity grading standards.