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20 Antennas Cell Phone Signal Jammer 3G 4G WiFi Bluetooth Cell Phone Scrambler Device

Place of Origin Guangdong, China
Brand Name EST
Certification CE, RoHS
Model Number EST-502F20
Minimum Order Quantity 1 piece
Packaging Details 1 pcs gift box for one device, neutral packing
Delivery Time 5-10 working days after received the full payment
Payment Terms Western Union, T/T, Paypal
Supply Ability 10000 pcs per month

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WhatsApp:0086 18588475571

Wechat: 0086 18588475571

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Product Details
Jamming Range 0-40m Adjustable (@-75dBm, Still Depends On The Signal Strength In Given Area) Single Output Power(each Band) ≤ 33dBm / 2W (adjustable With Power Adjustment Knob)
Power Supply AC Adapter(Input: AC100-240V; Output: DC12V 20A), Or DC12V Car Adapter Colour Black
Antenna 20pcs Omnidirectional Antennas Dimension 420*235*58mm (excluding Antennas)
Main Unit Weight 4.7kg Full Set Weight(N.W.) 6.6kg
Working Temperature -40 To +55℃ Relative Humidity ≤90%(RH)
Air Pressure 86~106kPa Safety Regulation AC Adapter UL (E190582) / CSA (LR112971 Level 3)
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20 Antennas Cell Phone Signal Jammer


3G 4G Cell Phone Signal Jammer


WiFi Bluetooth cell phone scrambler device

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Product Description

20 Antennas Indoor & Car use Remote Control 3G 4G WiFi/Bluetooth Mobile Phone Jammer



This powerful EST-502F10 adopted advanced technology 20 antennas mobile phone jammer, widely blocks the mobile phone frequency such as, GSM/CMDA/DCS/PCS/3G/4G/4G LTE/GPS/2.4G WiFi/5.8G WiFi/VHF/UHF/LOJACK/5G1/5G2, within 1-40 meters radius. Creating a shielding area to protect you from information leaking and track positioning. For organization and personnel who required information security and high confidentiality, or places where wireless signal is prohibited.



Bands Frequency(can be customized)

1st Channel: CDMA: 851-894MHz

2nd Channel: GSM: 925-960MHz

3rd Channel: DCS: 1805-1880MHz

4th Channel: PCS: 1920-1990MHz

5th Channel: 3G: 2110-2170MHz

6th Channel: 2.4G WIFI: 2400-2500MHz

7th Channel: GPS L1: 1575±10MHz

8th Channel: 4G LTE: 725-825MHz

9th Channel: 4G WiMAX: 2500-2690MHz

10th Channel: UHF: 400-470MHz

11th Channel: VHF: 135-174MHz / LOJACK: 173.075MHz

12th Channel: 315: 315MHz

13th Channel: 433: 433MHz

14th Channel: 868: 868MHz

15th Channel: 915: 915MHz

16th Channel: GPS L2-L5: 1170-1230MHz

17th Channel: GPS L3-L4: 1370-1390MHz

18th Channel: 5.8G WIFI: 5715-5860MHz

19th Channel: 5G1: 3400-3600MHz

20th Channel: 5G2: 4800-5000MHz




20pcs omnidirectional antennas

Jamming Radius

0-40m adjustable (@-75dBm, still depends on the signal strength in given area)

the cellular 2G/3G signal strength must ≤ -75dBm in the location

the cellular 4G/5G signal strength must ≤ -115dBm in the location

Single Output Power(each band)

≤ 33dBm / 2W (adjustable with power adjustment knob)

Power Supply

AC adapter(Input: AC100-240V; Output: DC12V 20A), or DC12V car adapter


420*235*58mm (excluding antennas)

Main Unit Weight


Full Set Weight(N.W.)


Working Temperature

-40 to +55℃

Relative humidity


Air pressure


Safety regulation

AC Adapter UL (E190582) / CSA (LR112971 Level 3)


Product pictures

20 Antennas Cell Phone Signal Jammer 3G 4G WiFi Bluetooth Cell Phone Scrambler Device 0


Packing list


(1) EST-502F20 Jammer main unit----------------------------1 piece

(2) Antenna--------------------------------------------------------1 set (20 pieces)

(3) AC adapter----------------------------------------------------1 piece

(4) Car adapter----------------------------------------------------1 piece

(5) Remote control-----------------------------------------------1 piece