Http://www.Jammergroup.Com The wireless signal jammer is high technology product designed for the mobile communication as the mobile phone makes people upset in some serious occasions. And it can prevent the lawbreaker to use the mobile phone in the detention house. Mobile phone is out of the coverage, it can return to be normal in operation. The jammer weighs 2.3kg and the dimension is l30*w25*h9 cm without the antennas. The working time is about 24 hours. It can be applied in the colleges, government constitutions, meeting rooms, music halls and thearter. And the detention house, prison and gas station can also use the jammer. Technical specifications Jamming area: up to 50meters (depends on signal strength, at the site to be jammed) Cellular systems: Option a for american market: cdma: 850-894mhz; gsm: 925-960mhz: s/dcs: 1805-1990mhz; 3g: 1990-2170mhz Option b for europe market: cdma: 869-894mhz; gsm: 925-960mhz; dcs: 1805-1880mhz; 3g: 2110-2170mhz Power adapter: input ac160v-240v, dc5v Total output power: 10watt Dimension: product antennas off: l 30x w 25x h 9 cm Package: l 45x w 30x h12 cm Product weight: 2.3kg Package weight: 2.85kg Working time: 24 hours/ 7 days Relative humidity: 20%--95% Working temperature: -40~ +55 deg c Antennas installation: install the antennas corresponding to the channel label. If not, the jammer will be very hot when it works Box