Basic SpecificationsJam Signal Type：1: WH-S8-W: Full Bands Mobile Phone 4G/3G/2G +WiFi2.4G+ 2: WH-S8-WG: Full Bands Mobile Phone 4G/3G/2G +WiFi2.4G+ GPSL1Output Power：Total 17W，1-3W each bandJam Radius：2-40metersPower Supply：AC110-240V to DC5VCooling System：High efficiency aluminum alloy radiator, Build-in 3 cooling fanWorking Time：Not-stop WorkingProduct Size：355x 135x50 mm（not Include Antenna）Product Weight: appr.3.0kgPackage Contents：Jammer Host x 1, AC adapter x 1,antenna x8,Car storage battery cable x1 Product Description The latest mobile phone signal jammer 8 antennas adjustable 3G 4G phone signal blocker with 2.4G GPS, higher cost performance new cell phone jammer model. Hidden output power adjustable switch design, a Good Quality Multi-functional WIFI 2.4G 5G and Cellphone 3G 4G Jammer, Adjustable and Built-in 3 Cooling Fan to support non-stop working.  AdvantagesThe latest module 8 chancel design, Customize for special frequency band High output power, Total up to: 17W, jamming up to 40m (Still depends on the strength signal in given area) External Omni-directional antennas all the TX frequency covered down link onlyBuilt-in good cooling system inside three fans, Working non-stopped(option)Hidden output power adjustable switch, prevent from other to off each band, just for manager to adjust or turn off any single band without influencing the other bands operation,    OEM Customized Service Customized for special frequency band , Wi-Fi5.8G 3.6GHz, etc Silkscreen OEM service can be offered Application It can be applied at meeting rooms, conference rooms, museums, galleries, theatres, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, bus and more Places that require silence, confidentiality and information security 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