Phone jamming equipment new - surveillance jamming equipment needed

Phone jamming equipment new,surveillance jamming equipment needed,Basic Info Model NO.: CPJ-P8 Jamming Range: 5-20m 2ggsm850MHz: 851-894MHz 2ggsm900MHz: 925-960MHz Dcs1800MHz: 1805-1880MHz 2gpcs1900MHz: 1920-1990MHz 3G2100MHz: 2110-2170MHz ...