Cellular signal jammer instructions - key signal blocker jammer

Cellular signal jammer instructions,key signal blocker jammer,Basic Info Model NO.: CPJ3050 2ggsm850MHz: 851-894MHz 2gdcs1800MHz: 1805-1880MHz 3G2100MHz: 2110-2170MHz 4glte2600MHz: 2620-2690MHz 4glte700MHz: 725-770MHz WiFi2.4G: 2400-2483MHz ...