Thanks for your attention! There are three kinds of DZ-101F series such as: *DZ-101F-A with IR remote control *DZ-101F-B *DZ-101F-E with IR remote control Today we would like to introduce our Signal Jammer DZ-101F-E. 1.TX-Frequency: (A)TX-Frequency:CDMA 870-880MHz (B)TX-Frequency:GSM 935-960MHz (C)TX-Frequency:DCS 1805-1850MHz (D)Tx-Frequency:PHS 1900-1920MHz(or CDMA1900 1975-1980MHz) (E)Tx-Frequency:3G 2110-2170MHz 2.Control:IR remote control(turn on and turn off) 3.Total Output Power:12.5w 4.Jamming Radius:2-50 meters depends on -75dBm 5.Power supply:AC110V or AC220V 6.Antenna:5pcs Omni-directional antennas 7.Net Weight:1.5kg 8.Worktime:It can work stably for long time 9.Running temperature:-40 to +55 Celsius Degree 10.Humidity:30%-95% Welcome to contact us to know more details and thanks for your business opportunity.