Shenzhen Greetwin Technology Co.,Limited
| Payment Terms | T/T, L/C |
| Supply Ability | 5000pcs per Month |
| Delivery Time | 3 Working Days After Received Payment |
| Packaging Details | Carton with PE Foam |
| Product Name: | Office Jammer |
| Frequencies | EGSM PCS LTE 4G |
| Power Supply | AC110-240V, DC 5V/8A |
| Application | Classrooms, Testing Facilities |
| Operating Humidity: | 5% - 95% |
| Jamming range | 2 - 40meters , depend on local signal strength |
| Output Power | 10W |
| Weight | 2.8KG |
| Brand Name | GREETWIN |
| Model Number | GW-JBF |
| Certification | SGS, ISO9001 |
| Place of Origin | Shenzhen,China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 5000pcs per Month |
| Delivery Time | 3 Working Days After Received Payment | Packaging Details | Carton with PE Foam |
| Product Name: | Office Jammer | Frequencies | EGSM PCS LTE 4G |
| Power Supply | AC110-240V, DC 5V/8A | Application | Classrooms, Testing Facilities |
| Operating Humidity: | 5% - 95% | Jamming range | 2 - 40meters , depend on local signal strength |
| Output Power | 10W | Weight | 2.8KG |
| Brand Name | GREETWIN | Model Number | GW-JBF |
| Certification | SGS, ISO9001 | Place of Origin | Shenzhen,China |
| High Light | cell phone blocker jammer ，cell phone signal blocker | ||
EGSM PCS1900MHz 4G LTE Cell Phone Blocker For Business / Office and House
Cell Phone Blocker Description:
We are living in world of mobile phone and wireless network. We can hardly escape getting exposed to mobile phone signals wherever we go. However, there are times now and then when we will need to isolate all those unwanted signals to create a space with peace. Jammers are invented thus to provide the possibility. Here we will introduce a ease of use jamming device to you all, adjustable Desktop Jammer with good cooling system.
This is a desktop adjustable ouput power jammer, what is different from many other type of desktop adjustable output power jammers in the market is that it owns powerful jamming effect and ability. This is a 4 bands adjustable output power jammer so that it can cut off the 2G, 3G, 4G, WiFi Signals very easily, and since designed with high quality the jamming radius is up to 40 meters at most according to the signal strength.
The Signal Jammer GW-JBF has 4 antennas supporting 4 frequencies of GSM, DCS, WCDMA, PCS, WiFi, GPS and any other frequencies can be customized and it comes with good cooling system.
Cell Phone Blocker Features:
1. Good cooling system,Jamming range up to 40m.
2. Working 24 hours continuously.
3. Turn on/off by remote control
4. Stable capability, cost-effective choice
5. Output power 10w , make more efficient jamming.
6. Heat sink case makes the jammer work in a more stable and cool situation.
7. Four channels with different frequency range,
or customize other cellular standard in the world.
Such as Walkie Talkie,450MHz,GPRS,iDEN,GPS, Galileo,Compass,Glonass,UMTS,WiFi,AWS,LTE 4G.
8. Transmit noise signal to cut off all communication between cell phone and Base station.
The jammed cell phone will show “No Service” .
will not be able to receive or dial outgoing calls.
Cell Phone Blocker Application:
Theatres, offices,Meeting Room, Oil and Gas Storage Facilities and fields, Hospitals,
Recording Studios, Banks, Contract Tendering Rooms, Churches, Conference
Rooms, Classrooms, Testing Facilities, Security Services, Military, Secret
Services, Libraries, Museums, Courts, Border Patrol and Drug Enforcement,
Customs, House, mosques, Libraries, Prisons, etc.
Cell Phone Blocker Specification.
Only interfere downlink frequency of mobile system, can’t affect normal operation of Base Station.
GW-JBF is a sophisticated high power desktop cellular phone jammer.
It can be used for all the worldwide network frequency system.
It is the best choice for Conference rooms, and offices.
| Output port | Frequency | Average output power | Output power |
| CDMA800 | 851-894MHz | 35dBm | 3W |
| GSM900 | 925-960MHz | 35dBm | 3W |
| DCS1800/ PCS1900
| 1805-1880MHz/ 1930-1990MHz | 33dBm | 2W |
| 3G | 2110-2170MHz | 33dBm | 2W |
| GPS (Optional) | 1570-1580MHz | 33dBm | 2W |
| WIFI (Optional) | 2400-2500MHz | 33dBm | 2W |
| Total Output Power | 10 Watt | ||
| Power Supply | AC110-240V,DC 5V/8A | ||
| Power consumption | 30 Watt | ||
| Weight | 2.8kg | ||
| Size | 210*170*50mm | ||
| Running temperature | -10℃ to +55℃ | ||
| Humidity | 5% - 95% | ||
| Complete accessories | Four omni-directional antennas, Power cable, Remote control, Fixed Mount | ||
| Jamming range(Radius) | 2 - 40meters , depend on local signal strength | ||
This device pack in a strong safety box with PE foam inside.
It gives top-class protection to the terminator device, and allows you to carry it easily like a big suitcase.
| Whip Antenna Specifications
| |
| Frequency Range | The same as the jammer channel |
| Impedance | 50 Ohm |
| VSWR | <1.5 |
| Gain | 2-3dBi |
| Polarization | Vertical |
| Radiation Direction | Omni |
| Max. Power | 50 W |
| Connector | SMA |
| Color | Black |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller,Other
Year Established:
2005
Total Annual:
5million-10million
Employee Number:
100~200
Ecer Certification：
Active Member
Shenzhen Greetwin Technology Co., Limited is one of the leading suppliers which specializes in designing and manufacturing RF Jamming Equipment and Wireless Coverage Products. Wireless Coverage Products include 2G 3G 4G LTE 5G RF Repeater. The RF Repeater... Shenzhen Greetwin Technology Co., Limited is one of the leading suppliers which specializes in designing and manufacturing RF Jamming Equipment and Wireless Coverage Products. Wireless Coverage Products include 2G 3G 4G LTE 5G RF Repeater. The RF Repeater...
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