GS-04 adjustable cellular phone jammer

GS-04 adjustablecellular phone jammer 1.Frequency jamming band: All kind of band GSM, CDMA, DCS, 3G, etc. 2.Working frequency:851M-894M,935M-960M,1805M-1880M,2110M-2170M. 3.The jammer has 4 transmitter system, each transmit outputs 3watts (output is adjustable) thetotal output is12watts 4.Can work continuously 5.Application: jails,churches,meeting rooms,cars(can use vehicle adapteretc. 6.Covering range reaches to 0-50 meters radius depending on the signal strength 7.Weight: 2.0KG 8.Dimension:240MM*140MM*60MM 9.Power adapter:5V12A AC110V-240V 50/60Hz