Cell Phone Service Blocker

8 Bands 3G 4G Cell Phone Jammer GPS Jammer Wifi Jammer Lojack Jammer - For Worldwide Features ■Multiple bands ■High output power ■Cooling fan inside,Website:http://www.jammerwill.com, Could be used in car directly, With car charger and AC charger ■With Built-in Battery: 4000mA/h, Charge full time about 6Hours, Working time: 1-2Hours. Specifications■Isolating Signal Bandwidth: - CDMA/GSM: 850MHz - 960MHz - DCS/PCS: 1805MHz - 990MHz - 3G: 2110MHz - 2170MHz - GPS: 1570MHz - 1610MHz- WIFI: 2400MHz - 2485MHz- LOJACK: 168MHz - 178MHz- 4G(LTE): 725MHz-770MHz / 790MHz-862MHz- 4G WIMAX: 2345MHz-2400MHz / 2620MHz - 2690MHz■You can select 8 of above frequency bands you need in a jammer ■Total output power: 4W, Small size design so the temperature is a bit higher ■Shielding Radius Range: up to 20m, the jamming radius still depends on the strength signal in given area ■External Omni-directional antennas all the TX frequency covered down link only ■Power supply: 50 to 60Hz, 100 to 240V AC ■With AC adapter (AC100-240V-DC12V), 4000mA/H battery Application Area■It can be applied at meeting rooms, conference rooms, trains, bus and more ■For some locations of special purpose such as hospitals, gas stations and more, Please do field test first to make sure no interference happened to the normal operation of their equipment and instrument ■ATTENTION: Before turning on the device, you must install the antennas accordlng to the mark indication on the main unit Package Contents ■1 x Signal Jammer with 8 Antennas■1 x Power Adapter■1 x Car Charger■1 x User ManualProduct Reviews:1.Very good product,fast shipping and high quality.2. Very good product. Everything works well! Good!3. high properties with reasonable price and fast shipping. Good deal.Highly recommend this model.4. Great tool! No issues at all.5. I searched a bunch of sites and this was the best.6. I want to thank the company for such great service. I asked many questions and had them all answered.