This jammer is same as the P3 and P4 above but covers 3 frequency bands: (GSM900 / GSM1800 / 3G) It can be used in all kind of vehicles where the driver/operator should not be disturbed by phone
calls. Works on 12v, 24v DC and 110/220v AC.In the "vehicle" mode it is directly connected to the battery of the vehicle.
This jammer is same as the P3 and P4 above but covers 3 frequency bands: (GSM900 / GSM1800 / 3G)