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-A. 1. TX-Frequency: (A)TX-Frequency: CDMA 870-880MHz (B)TX-Frequency: GSM 935? 960MHz (C)TX-Frequency: DCS 1805-1850MHz (D)Tx-Frequency: 3G 2110-2170MHz or PHS 1895-1918MHz 2. Control: IR remote control(turn on/off and adjust output power) 3. Total Output Power: 10w 4. Jamming Radius: 2-50 meters depends on -75dBm 5. Power supply: AC110V or AC220V 6. Antenna: 4pcs Omni-directional antennas 7. Gross 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. G.W.:1.5KG