With a 4 band handheld phone jammer, you can block any of the signal at your will.
| Device Blocked: | Phone |
| Signal Blocked: | CDMA,GSM,DCS,3G |
| Blocked Area: | 2 to 15 Meters Depending on signal strength and working environment |
| Jamming Frequency: | CDMA: 851-894MHz GSM: 925-960 MHz DCS:1805-1880MHz 3G:2110-2170MHz |
| Output Power: | 3W |
| Power supply: | AC:110-240V DC: 9V 1300mA |
| Typical Battery Life: | 2Hours |
| Battery: | Built in Rechargeable Li-ion battery |
| Weight: | 1KG |
| Dimension: | Antennas off - 200,mm(L)×150mm(W)×100mm(H) |