A person cannot make call or send and receive text messages. In the jammed area mobile mobile phone jammer is a device which blocks the signals of the mobile phone from the base station. The reception of the cell phone is excluded and, so the phone stops work working. The device is useful at the places where the use of mobile phone is restricted or silence is expected. Cinema halls, schools, colleges, prisons, mosque, temples, borders are the places where the device is generally used Working Area: * Clinics & Hospitals, During personal meetings with doctors, politicians, VIP For ICU & Operation Theaters. * Conference Room, Hall, Law Court, Library, Exam Room, School, Theater, Hospital * Gas Station, Gas Filled Station, Oil Field, Oil Depot * All the area where using mobile phone is prohibited such as Government, Military, Finance, Security, Public Security ..etc.