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Portable Powerful Signal Jammer for Jamming Mobile Phone + WiFi + Bluetooth

Posted on 5th Jan 2016 @ 10:03 AM

If you take the signal jammer,means you may own a 2G 3G 4G mobile phone jammer,WiFi jammer and a Bluetooth jammer at the same time.

Handheld Selectable Bluetooth WiFi 3G 4G Cellphone Signal Jammer

Teachers may adapt the device as a teaching tool in classroom.Students should be followed with teacher but not their mobile phones.We mentioned before,It was found that following a ban on phone use,test scores of students are well improved by 6.41% of a standard deviation -- if a ban is not widely complied with there won’t be significant gains in students’ performance.Furthermore,the effect is driven by the most disadvantaged and underachieving pupils-- parents and teachers should know ,your kids/students are not weak in their works in fact,they are just being diverted attention from mobile phones.Students in the lowest quartile of prior achievement gain 14.23% of a standard deviation.To some in the top quartile students are neither positively nor negatively affected by a phone ban.

So,students use mobile phone in class should not be welcomed.Teacher may take the signal jammer to class and make it work class is over.Within the covering range of the device,students can’t make and receive phone calls,sending text,chat via social software,search on net ,transfer data via Bluetooth and use WiFi source.

The same way,when students are in exam,teachers use the signal jammer to prevent cheating from students phone using.Note that,the signal jammer is portable and work by battery,it needs to be charged when it is in low power--that decides ,jamming range is limit (up to 20 meters).If you need some more powerful ,please chat with our online services.