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Adjustable 4G LTE2600 3G2100 Mobile Phone Signal Jammer WIFI Jammer For School

Shenzhen Greetwin Technology Co.,Limited
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Shenzhen Greetwin Technology Co.,Limited
City: Shenzhen
Province/State: Guangdong
Country/Region: China
Tel: 86-151-12267605
Contact Person:
Mr Albert

Adjustable 4G LTE2600 3G2100 Mobile Phone Signal Jammer WIFI Jammer For School

Brand Name : GREETWIN
Model Number : GW-JB5F
Certification : SGS, ISO9001
Place of Origin : Shenzhen,China
Price : Negotiable
Payment Terms : T/T, L/C, Western Union, MoneyGram
Supply Ability : 5000pcs per Month
Delivery Time : 3 Working Days After Received Payment
Packaging Details : Carton with PE Foam
Product Name : 5 Antennas Powerful Cell Phone Signal Jammer
Advantage : User Can Adjust The Output Power
Jamming range : 24 Hours
Output Power : Up to 40 meters
Antennas : 5 PCS Omni Antennas
Power Supply : AC110-220V±10% / DC5V
Size : 210x185x50mm
Working Time : Working Continuously
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Up To 40 Meters Adjustable Mobile Phone Jammer 4GLTE2600 3G2100 For School


This jammer can provide a secure area coverage and prevent both cell phone,WiFi and GPS signal.

This model ,GW-JB5F, features a built in fan to keep the unit cool during extended periods of use, as well as turn on /off switch selectable settings so you can choose which channels to block.
Create a protected zone around you, your vehicle, or your meeting, by blocking cellular and / or GPS signals.
The charging light turns from red (while charging) to green (full charge reached) for a quick visual display of charging status.
Individual channel on/off selector switches allow you to choose which channels are blocked.

We also have a lot of high quality products on this website and we will be grateful if you can browse more products.

Need mobility? Please browse our portable mobile blocker section.
As always, if you have any questions we are happy to assist you.

For meeting rooms, conference rooms, museums, galleries, theatres, concert halls and churches


1). You can choose every band to turn on or off.

2). 24 hours long time work continuously without stop

3). One year warranty from delivery date

4). 2-40 meters depending on the signal strength in given area

5). The 12watt high power design ensure efficient jamming effect

6). Inside cooling fans and heat sink design

7). Can customize other cellular standard in the world.

Such as Walkie Talkie,450MHz,GPRS,iDEN,GPS, Galileo,Compass,Glonass,UMTS,WiFi,AWS,LTE 4G.


Output portFrequencyAverage output powerOutput power

DCS1800/ PCS1900



GPS (Optional)1500-1600MHz33dBm2W
Total Output Power12 Watt
Power SupplyAC110-240V,DC 5V/10A
Power consumption40 Watt
Running temperature-10℃ to +55℃
Humidity5% - 95%
Complete accessoriesFive omni-directional antennas, Power cable, Remote control, Fixed Mount
Jamming range(Radius)5 - 40meters , depend on local signal strength

Product Tags:

mobile phone scrambler


mobile phone blocker jammer

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Adjustable 4G LTE2600 3G2100 Mobile Phone Signal Jammer WIFI Jammer For School Images

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