When the cell phone jammer works, it only shields the cell phone signal and does not affect other electronic devices. At the same time, the radiation generated is very small and will not cause harm to the human body. Studies have shown that long-term use of mobile phones not only damages eyesight, but also interferes with sleep, affects social interaction, and causes rashes. Especially for children at home, shielding mobile phone signals at home allows children to have more learning time. Entertaining and communicating with your family can make your family more harmonious and beautiful.