This product is suitable for where forbid to use mobile phone.

Hereinafter are the jammer's features:

GS-04B

1.Frequency jamming band: All kind of band GSM, CDMA, DCS, 3G, etc.
2.Working frequancy: 851M-894M, 935M-960M, 1805M-1880M, 2110M-2170M
3. Jamming area can be adjusted precisely

4.The jammer has 4 transmitter systems, each transmitter output 3watts (output is adjustable), the total output is 12watts
5.Can work continuously
6.Application: jails, churches, meeting rooms, cars(can use vehicle adapter)etc.
7.Corvering range reaches to 0-50 meters radius where the field intensity is less than minus 100DMB
8.Weight: 1.8KG   
9.Dimension: 240MM*140MM*60MM
10.Power adapter: 5V10AAC110V-240V 50/60Hz