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ShenZhen Necom Telecommunication Technologies Co., Ltd.
Home ProductsPrison Cell Phone Jammers

2G 3G 4G Wifi Prison Cell Phone Jammers PLL Synthesized Signal Source

China ShenZhen Necom Telecommunication Technologies Co., Ltd. certification
China ShenZhen Necom Telecommunication Technologies Co., Ltd. certification
Good cell phone signal jammer, factory to me the price is well, A+++

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Vehicle jammer got it, perfect operating, thanks. AAA

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2G 3G 4G Wifi Prison Cell Phone Jammers PLL Synthesized Signal Source

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Large Image :  2G 3G 4G Wifi Prison Cell Phone Jammers PLL Synthesized Signal Source

Product Details:

Place of Origin: China
Brand Name: vodasafe
Model Number: PJ650A01

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: Negotiable
Packaging Details: Neutral Packing Carton Box
Delivery Time: 3-5Working Days After Payment
Payment Terms: L/C, T/T, Western Union,
Supply Ability: 5000pcs Per Month
Detailed Product Description
CDMA/GSM: 850-894MHz 50W; PCS1900MHz: 1920-1990MHz;
3G/UMTS: 2110-2170MHz 50W; 4GLte: 790-826MHz 50W;
4G/WiMAX: 2620-2690MHz 50W; Wi-Fi2.4G: 2400-2485 MHz 50W;
High Light:

phone jamming device


pocket cell phone jammer

300W High Power Prison Signal Jammer/2G3G4GWi-fi Prison Phone Signal Blocker




The 300W prison shield has six frequency segments, each with an output of 50W and a shield distance of 150 meters. This model is designed for prisons and can be installed indoors or outdoors. It has a waterproof outer casing, the frequency of this product is free to choose, you can choose to install 2G3G4G Wi-Fi models to facilitate the management of prison staff and prisoners, you can also choose to customize the GPS and remote frequency range To cut off the positioning of the outside world and the signal of remote control bombs to ensure the safety of prison management. If you need this, please contact us.



  1. Up to Six Frequency Bands;
  2. PLL Synthesized Signal Source;
  3. Scew controls to adjust Output Power;
  4. 12-15dBi Directional Antennas each Band;
  5. Only Interferes w/Downlink Base Station Frequencies;
  6. Slow Start-up Circuitry for Long Term Reliability;
  7. Over Temperature and VSWR Protection;
  8. Status/Alarm LEDs;
  9. Fan Cooled Rack Enclosure with Casters;
  10. 100-240VAC Power Supply Source;
  11. Optional Status Monitoring Software for Client PC;

Applicable place:

Jammers for prisons and other large sensitive locations such as military or governmental compounds. Homeland Security, Correctional Centers

Petrochemical Industry, Sports Venues and Theaters, VIP Convoy Protection, Bomb Prevention/Disposal, Schools and Universities Government and Military, Power Generating Plants.


Total Output Power 300W
Cover Radius 50-150m(under Signal level ≤-85dBm)@according to the signal density mobile network
Jamming type Sweep Jamming
Antenna Type Directional Antenna or Omini-directional antenna
Remote control on/off (3-5m)
Power Supply AC adapter (50 to 60Hz/100 to 240V AC –DC27V)
Electric Filed (SAR) Compatible with ICNIRP Standards (Human safe)
Operating Temp -20 to +50℃
Storage Temp -40 to +60℃
Humidity 5%-80%
Dimension(LXWXH) 690 x 500x 350mm not include antennas
Net Weight 65kg
G.W/CTN 100kg


Style A:

CDMA/GSM:850-894MHz 50W;


3G/UMTS:2110-2170MHz 50W;

4GLte:790-826MHz 50W;

4G/WiMAX:2620-2690MHz 50W;

Wi-Fi2.4G:2400-2485 MHz 50W;

Package contents:
1 pc One main jammer unit
6 pcs Directional Antennas 65 Degree
1 pc Antennas frame with 1.5m cable
1 pc Power cord
1 pc Wireless OFF/ON remote controller 315Mhz2G 3G 4G Wifi Prison Cell Phone Jammers PLL Synthesized Signal Source 0


Contact Details
ShenZhen Necom Telecommunication Technologies Co., Ltd.

Contact Person: Abby

Tel: +8613713574286

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