Hello there! What you said, I agree very much. Our store has conducted a survey, which requires a cell phone handheld jammer. Among the results shown in the questionnaire, schools and movie theaters are the most needed places. Yes, today, due to the easy exposure of personal information and privacy, we need to take appropriate security measures. Multifunctional mobile phone jammers are a good choice and can be used in homes, offices and other places to provide security protection. protection.