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4 Antennas Remote Control 2G/3G Mobile Phone Signal jammer EST-505A

SKU: #001 - In Stock

  • airport Shipping:  International shipping available
  • delivery_food Shipping time:   Standar(10-20 business days), Rush(5-10 business days)
  • chip Discount:  Get 2% discount on orders of USD $100.00,Get 3% discount on orders of USD $200.00
  • compass Handling time:  Ships within 3 business days after receiving cleared payment
  • available_updates Returns:  7 days money back guaratee,buyer pays return shipping

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This mobile phone signal jammer EST-505A for blocking mobile phone signal such as CDMA/GSM,DCS/PHS,3G, within the 1-15 meters radius. 4 antennas effectively cover the mobile phone frequency, to create a safety area shield you from harassment and surveillance, protect your information security and confidentiality. Only effect on mobile phone signal, does not disturb other electronic devices, suitable for places where mobile phone is prohibited.




TX Frequency

CDMA: 850-894MHz

GSM: 930-960MHz

DCS/PHS: 1805-1990MHz

3G: 2110-2170MHz

Available system :Include analog (AMPS, TACS, NMT) and digital (GPRS, GSM, 


Single output power +33dBm /1W

Power input :AC110V-240V

Jamming range: Radius 1- 15M【the Cellular signal must ≤-85dBm in the location】

The jamming radius still depends on the strength signal in given  area

Remote control range: 1-5M

Safety regulation: AC Adapter UL (E190582)

CSA (LR112971 Level 3)

Dimension: 212(L) ×106.5(W) × 30(H)mm

Weight :1.5kg  

Temperature :-10 to +55℃

Relative humility:≤90%(RH)

Air pressure:86~106kPa



(1) Powerful 4 antennas with multiple channels, can cover most cell phone frequency, provide safety for your information and privacy.

(2) The jammer only effect to mobile phone, has no effect to other electronic devices and does no harm to human body. Remote control allowing you turn on/off the jammer without coming close.


Operation instruction

(1) Open the package and take out the devices.

(2) Install the antennas to the right position by following the indicated number.

(3) Connect with electricity by plug in the AC plug, then switch on the button, the LED light on, the jammer is working.

(4) The valid space is a round space spread from the jammer, to achieve the most efficiency, please put the jammer in the center.

(5) Please keep the jammer away from electromagnetic and heat sources, to achieve maximum efficiency and stable longtime performance.

(6) After using, please turn off the jammer for normal usage of cell phone.

(7) While using the jammer outdoors, please avoid the water and damp.

(8) For containing, please keep the jammer away from caustic gases and liquids, make it dust-proof and moisture-proof to prevent aging of the inside components be accelerated.


(1) The jammer needs no special maintenance

(2) Please do not use chemical solvents and prevent water drop into the jammer when polishing the surface.

(3) For storage, please contain the jammer in dry and ventilated places to avoid salty mist and noxious gases.

(4) The warranty period is 1 year. The jammer is repaired free in charge for three years and maintenance for life, only the buyer needs to beer the shipment fees.

Application situation

Conference room, school, jail, government office, residential zone, government building, etc. Where information security and high confidentiality is required, or the use of cell phone is prohibited.

Packing list

(1) EST-505A main unit 1pc

(2) Antennas 1set(4pcs)

(3) AC adapter 1pc

(4) Remote controller 1pc

(5) User manual(optional) 1pc

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