Product Name: Cellular Phone and GPS Jammer with Remote Control (TG-4CA) Model NO.: TG-4CA Product Description GSM900: 925-960 MHzGSM1800: 1805-1880MHz3G: 2110-2170MHzWIFI: 2400-2500MHzTotal output power: 10WJamming range: Radius up to 40m, The jamming Radius still depends on the strength signal in given areaWith remote control to turn on/off the jammer.Adjustable output power, each band can be controlled separately and simulatneously.Working time: May continue to work 24/ 7External Omni directional AntennasAll the TX frequency covered down link only.Dimension: ( L * W* H): 200*165*60mmFull Set Weight: 2.8KGFeatures: It can be applied at meeting room, conference room, museum, gallery, theatre, concert hall, church, temple, restaurant, classroom, training center, factory, bank, train, bus, etc. For some locations of special purpose such as hospital, gas station, etc., please do field test first to make sure no interference happened to the normal operation of their equipment and instrument. It is easy to install and operate the device.