The device can block the mobile phone to call out or receive any calls, disable the SMS, Bluetooth,  internet, WIFI, GPS and Walkie Talkie etc. Power adjustable and harmless to human body. 10-chanel jammer. 

Working Frequencies:

CDMA: 869-894MHz

GSM: 925-960MHz

DCS/PHS: 1805-1920MHz

3G: 2110-2150MHz

WIFI: 2400-2500MHz

4G1: 2300-2390MHz

4G2: 2550-2660MHz

GPS: 1500-1600MHz

UHF: 400-470MHz

VHF: 135-175MHz

 

We can manufacture per requirement. Frequencies can be customized.  

Single output power   2W+/-200mA

Power input        AC160V-240V, output DC5V 12A

Power output         20W

Jamming range     Adjustable Radius: 1-25M

Safety regulation   AC Adapter UL (E190582); CSA (LR112971 Level 3)

Dimension        420(L)×140(W)×40(H)mm

Weight           2 kg 

Temperature      -10 to +55ºC

Relative humidity    ≤90%(RH)

Air pressure       86~106kPa

 

Working Area

1. Conference room, auditoriums, law court, library, exam room, school, cinema, theater, hospital and gas station etc.

2. At places where using mobile phones is prohibited such as government, military, finance, security, police and command center etc.

 

Installation

1.       The device can be installed on wall or ceiling with screws. The temperature can reach 50 ºC on the surface of the working device, so please stay away from low heat resistance objects.

2.       Installation height: 1-2 meter from the ground recommended.

3.       Do not point the antennas of the device to BTS direction for better results. 

 

Related Articles
 

 

Why Cell Phone Signal Blockers are Needed in Educational Institutions?

In modern society, cell phones are undoubtedly a very convenient tool. However, depending on the time and place of use, the normal public order may also be hindered. Such as library, classroom and so on.

Learning Distractions

There's no doubt that smartphones have remarkable capabilities which, in theory, could promote student learning. But the truth is that kids - in spite of the best efforts of parents and teachers - use their phones primarily to access digital amusements. A Kaiser Family Foundation report says: "The transformation of the cell phone into a media content delivery platform [has]... facilitated an explosion in [entertainment] media consumption among American youth," including TV and video games. 

Needless to say, mobile phones are not supposed to be used in classrooms. Cell phone use during class is not allowed, but instructors do not want to enforce the rule and they constantly complain that I should find a solution so that they do not have to argue with students. A friend of mine who is a teacher was once annoyed by his students texting short messages during class, and later he bought a portable cell phone signal blocker, then all the students were confused that their cell phones cannot receive any signals even if it was the most advanced one. 

A high school principal who bought a cell phone signal jammer from an online dealer in China in order to protect students from using their phones at school in violation of district policy. First off, he was probably fed up with abuse and misuse of cell phones on his campus, and his decision may have been prompted by cases that severely compromised the learning environment he was trying to create. It's disheartening, though, that it came to this - that educational efforts, deterrent strategies, formal policies in place, and vigilant monitoring and sanctioning did not decrease the problem enough. 

Schools will clearly promote their students' academic success and safety by limiting the use of student phones during school hours. Presently, most schools leave it to teachers to manage phone distractions in their own classrooms. But this piecemeal approach has left teachers with inadequate support to confront the difficult and potentially unsafe task of limiting disruptive phone use by defiant students. 

Schools will clearly promote their students' academic success and safety by limiting the use of student phones during school hours. Presently, most schools leave it to teachers to manage phone distractions in their own classrooms. But this piecemeal approach has left teachers with inadequate support to confront the difficult and potentially unsafe task of limiting disruptive phone use by defiant students. 

Schools will clearly promote their students' academic success and safety by limiting the use of student phones during school hours. Presently, most schools leave it to teachers to manage phone distractions in their own classrooms. But this piecemeal approach has left teachers with inadequate support to confront the difficult and potentially unsafe task of limiting disruptive phone use by defiant students. 

Someone believe that cell phones should not be in use during learning time because children would not fully concentrate on their work. Children could go on facebook, and facebook is not helpful for their learning. Children will be distracted by phones' ringing or flashes from other children taking photos with their phones. Cell phones should not be allowed in school during learning time. 

In addition to send text messages, cell phone blockers can also effectively prevent students from using mobile phone cheating. Cheating is always repeated, in the face of this situation educators have to use jammers to prevent cheating. 

Educators in China, Japan and Russia are now using the devices aggressively and across the country.