The GSM008 Triple has 30 Watts total power, range up to 300+ metres (in optimum conditions) Fan cooled for long operation. This model is equipped with 6 stage power adjustments for each antenna to give you maximum control. The GSM008 High Power cell phone jammer is the model of choice for use in prisons and other types of corrective establishments due to it's excellent performance and the fantastic bulk pricing that we offer on this and every other unit in our range. This unit is for professional use only. Suitable for commercial or military use. This unit comes with patch semi-directional weatherproof antenna and will cover a range of up to 300 metres with ease. If used outdoors with the antenna mounted on the roof and with clear line of sight then a jamming distance of up to 400 metres is feasible. Please note that the only standard models GSM008 are available to buy online from this page, however we can make the GSM008 to meet your own specifications in terms of which cellular bands are to be covered from 800/900/1800/1900/2170 mhz as required in your country. Please let us know if you require a special build. Specification Jamming Frequency 850~964 MHz 890~964 MHz 1.700~2.000 GHz 2.000 ~2.200 Ghz Nextel / TDMA / CDMA / AMPS / NMTP / Etacs / GSM900 / GSM1800 / DCS / W-CDMA / PCS/3G (UMTS, CDMA2000) Jamming range & antenna output power Patch antenna : angle 120 degree Directional block area : 300m or more Total 30W (each antenna 10 watt ) when cell phone signal is under -70db Size - Jammer : 300x430x100 mm - included patch antenna with 1m cable, Packing : 400x530x200 mm Net weight : 9.5kg Total Gross :12.0kg volume weight : 12.0kg Remarks: - Specification can be changed without notice - Block range will be less than maximum if not line of sight - Supplied with Adapter : Input : Free voltage(AC110-220), Output : DC24 volt 4Amp GSM008 Triple Car Kit accessory - optional accessory Now you can run your GSM008 Triple jammer from your car and disable other motorists using their cell phones or create a clear area around your vehicle for security purposes. The kit comprises of 3 x magnetic mount antenna bases, a s