HIGH Power 3G ALL NETWORKS CELL PHONE JAMMER  40 meter range, continuous use US$595 + shipping US$50 60 meter range, continuous use US$795 + shipping US$50 Blocks all netwroks including the latest 3G phones. Best cell phone jammer for medium size office, meeting room, classroom, clinic.. TX frequency 869/851 ~ 894 MHz TX frequency 925/935 ~ 965 MHz TX frequency 1800 ~ 1990 MHz TX frequency 2110 ~ 2170 MHz Cover interface standards: AMPS,N-AMPS, NMT,TACS,GSM,CDMA,TDMA,IDEN,UMTS Total output power ： EIRP 12W Patch Antenna - integrated of Gain 5 dBi of each band Designed to cut off wave only in the down-link band width, Therefore it doesn’t affect any Interference to base station and repeater. Jamming range ： diameter 30 -40 M 【 the signal intensity must ＜ -80db in the location 】 Automatic power switching power supply ： 50/60Hz/AC 100 ~ 240V to DC 12V Remote Control IP68 Waterproof Housing Outdoor design Device Dimension：38.5cm (L)× 33cm(W)× 16.5cm(H) Device Weight: 5.5kg Operating temperature: -10 ℃ ~ + 60 ℃ Storage Temperature -30 ℃ ~ + 70 ℃ Humidity: 95% non-condensing Inner hand carry Box: 39.5 x 33 x 17cm / Weight 3kg This comes in 2 models, America or Europe. Payment can be made thru paypal in EURO or US Dollar. 40 meter range, continuous use US$595 + shipping US$50 60 meter range, continuous use US$795 + shipping US$50 Our paypal account is sales@infostream.biz Express Mail Service shipping takes about 3 to 5 days. Thank you.