Product Description Most of us know that in important places like prisons, military meeting and museums, actions have always been taken to prevent the message from being given out. What kind of device can install in these places to reach the purpose, the Rackmount High Power Cell Phone Signal Jammer must be the one which is most suitable. A big merit of this rockmount high power cell phone signal jammer is that each band can adjust RF power output level or turn off without influencing the other bandsâ?? operation. The original antenna is external double channel directional panel antennas and you can select antennas to provide more flexibility regarding jamming coverage. The jamming coverage of this jammer is so strong that the jamming range could reach 500m, but the jamming range is also determined by the strength of signal in given area. Seen from its function this one jamming device is really a good one. If you are looking for one, come here! High quality and reasonable price is our promise. Specification Affected Frequency Ranges: (8bands option) -CDMA 800: 850 to 894MHz -GSM 900: 925 to 960MHz -GSM 1800: 1805 to 1880MHz (DCS) -GSM 1900: 1920 to 1990MHz (PCS) -3G: 2110 to 2170MHz -4G LTE: (USA:725-770MHz) or (Europe:790-826MHz) -4G Wimax: (USA:2345-2400MHz) or (Europe:2620-2690MHz) -WiFi: 2400-2500MHz -VHF: 136-174MHz -UHF: 400-470MHz OTHER: Customize frequency Total output power:400~800W Jamming range: up to 500m, the jamming radius still depends on the strength signal in given area External double channel directional panel antennas all the TX frequency covered down link only Power supply: 50 to 60Hz, 100 to 240V AC With AC adapter (AC100-240V-DC27V), Dimension: 420480130 mm Accessories High Power Cell Phone Signal Jammer Antennas Power cable Monitor software function: (Option) Remote control switches of each machine. Remote viewing each machine working state. The power output of each machine remote adjustment. Remote viewing offline log of each machine. Mail receiving each machine working state. The system can set permissions to log on.