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In a world of high tech, we are surrounded by many security gadgets such as, digital voice, and telephone recorder and security cameras. Also, we are monitoring being monitored daily by these items. These gadgets bring us comfortable and welfare. There are so many benefits in comparison with drawbacks. First of all, police and some security agencies have applied these security devices to prevent the crimes. Likewise, they have utilized them to follow up and discover detect the criminals and the reason of the crime such as, kidnapping, trafficking and all kinds of theft especially from the bank. Secondly, some organizations and workplaces exploit these smart devices as a controller for their employees to check the performance and detect the efficient employeestaff. Moreover, they can promote the position of their organization by this system. Besides, using these security devices is an affordable method in economic terms of economically because the organization does not need to hire a large number of members to check the personnel no to mention as well as saving the time. Thirdly, parents use baby monitoring for checking their baby in an indirect way and they feel more relaxed. Sine, parents are aware of the performance of these systems and they trust them. However, some believes that they are monitored by some digital devices unconsciously and their private life is in danger. In fact, applying these devices is are increasing day by day in every places and situation. In addition, these security devices will find their specific place and inseparable among the people little by little and will be indispensable . Also, people are getting used to it. As far as I know, there is no doubt, that all the security gadgets are monitoring people and they have influenced in people's daily tasks. However, all these devices provide a safety and convenience convenient life.