School/Factory Jammers

Now days,new technology got a lot of benefits,but some time is bad for class room,the student use their cell phone for social or internet, a lot of teacher complain that, we offers small portable jammer and middle size jammer for school to avoid student use in classroom.
In office always see the staff use cell phone for social, it will less the work efficiency, most of suitation need a cell phone jammer to blocking 3G,4G networking function.
In factory or work shop, the worker use cell phone for social also a big problem, it's may be injured or other accident, most of factory need cell phone jammer to blocking internet access by 3G,4G to keep good working process, our product meets these kind demands.
our school factory jammer have portable and desk style, you can choice small jamming range to larger range.