This jammer is a kind of novel designed cell phone and satellite jammers. It can mainly used in bomb disposal and can block the 4 frequencies at the same time. Masterly designed heat-removal system ensures it to continuously working under tough weather. The material quality of its backpack style gives an artistic appearance and durable feature. The blocking frequencies including all the cell phone and satellite phone frequencies and its frequency range can be up to 4. Application fields: -Bomb disposal and military automobile allocation; -Field operations; -Special troops; -VIP protection; -Bandit suppression. At a glance: Portable, backpack style. Lightweight: the whole device with antenna weighs only 18KG or so which is easy to carry; Block 4 frequencies at the same time; Output power can be up to 60W; High gain omnidirectional antenna (directive antenna for your choice); Power supply: built-in Lithium-battery, external DC or AC are accessible too; Continuous working time of the built-in battery can be up to 2 hours if fully charged; The device adopts the high-power wireless amplification technology which can proceed the standing-wave ratio and temperature self-protection. The Specification for this jammer: Number of Frequency bands: 4 bands List of frequency bands per customer choice(up to 4 can be selected) -CDMA/TDMA+Nextel (851-894 MHz), -iDEN -AMPS (869-894MHz), -GSM850 -GSM (925-960 MHz), -High GSM/DCS (1805-1880 MHz), -PCS/GSM1900 [+PHS] (1930-1990 MHz), -UMTS (3G) (2110-2170 MHz) Computer communication standards 2.4Ghz -WLAN Bluetooth Wi-Fi. Satellite communication systems -Thuraya Iridium Elipso Inmarsat GlobalStar -Aces Odyssey GPS CDMA450 Cellphone System -(430-450/460-470 MHz) Output watt: 50watt Power Consumption: Max: 380W Power supply voltage:~230VAC / ~110VAC Power Adjustment: Multi level potentiometer adjustable by computer. Battery 2-3 hours Range Radius: Up to 120 meters ( signal