Reasonable use of mobile phone signal jammers can ..

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Reasonable use of mobile phone signal jammers can prevent children from indulging in online games | #jammer

Reasonable use of mobile phone signal jammers can prevent children from indulging in online games

If parents or teachers use mobile phone bans and other compulsory means to manage students' mobile phones, many children will have strong resistance and increase the friction between parents or teachers and students! How to effectively manage students' use of smart phones has a

Reasonable use of mobile phone signal jammers can prevent children from indulging in online games