Product Name: 8 Bands High Power Portable Phone Jammer, Cell Phone Jammer, Jammer for All Cellphone 2g 3G 4G Jammer, WiFi, GPS, Lojack Jammer/Blocker Model NO.: NT-CJP8 Signal Jammer for: GPS WiFi Lojack 2g 3G 4G Name: High Power Phone Jammer Jammer Jamming Range: up to 20m Trademark: Newerton Transport Package: Neutral Packing Specification: CE Origin: Shenzhen China Product Description 8 Bands High Power Portable Phone Jammer, Cell Phone Jammer, Jammer For All Cellphone 2G 3G 4G Jammer,WIFI,GPS,Lojack Jammer/BlockerProduct No.: NT-CJP8SpecificationsIsolating Signal Bandwidth:- CDMA&GSM (850-960MHz)- DCS&PCS (1805-1990MHz)- 3G (2110-2170MHz)- 4G LTE (US.725-770MHz) or (EU.800-895MHz)- 4G Wimax (US.2345-2400MHz or (EU.2620-2690MHz)- GPS ( 1570-1580MHZ)- WIFI ( 2400-2500MHZ)- LOJACK ( 160MHz - 175MHz)Power Supply:AC 110~250V to DC 12V, car 12V to DC 12VBattery: Li- ion battery DC7.4V/3600mA/hBattery Working Time: 2 or 3 hours maximumCharger time: Around 6 hoursTotal output power:6WJamming Range: Up to 20M (depend on cell phone signal Length)Antennas Details: high-tech rubber (8 units)Dimensions Of Device: 132x80x40mmWeight Of Product: 1.0kgColor: BlackAccessories8*AntennasCar ChargerAC ChargerAdvantages:1.Multiple bands, can adjust on or turn off any single band without influencing the other bands operation2.High output power3.Cooling fan inside, could be used in car directly, with car charger and AC charger4.With built-in battery: 4000mA/h, charge full time about 4 hoursWorking time: 1-2 hoursApplication area:5.It can be applied at meeting rooms, conference rooms, trains, bus and more6.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 instrumentWarranty: one year from delivery date