Recently, a lot of people ask my child to be addicted to mobile phone, tired of learning, how to do? If you have a situation like this, you can hide your phone, or you can't use it. You can only watch your phone if you have finished your homework. Maybe your kids are rebellious, and that doesn't work. That way you need to use coercive means, and the cell jammer
is one of the devices you need to choose. It will block cell phone signals, or wifi signals, so that his phone doesn't have any Internet connection.