This range of signal jammers is used in various commercial buildings and public areas where the usage of mobile phones surpasses the pre-determined parameters or any specified limit. Application of such internal antenna jammers can be noticed in theater halls, corporate offices, concert halls, educational institutes etc. Based on application requirements, these signal jammers can be availed in 5/4/6/8 antenna based choices. These portable systems can be accessed in different frequency ranges to suit specific bands used by cell phones. Energy efficient quality, concealed design and utilization of smart technology are the key features of these systems.