GSM 3G 4G Handheld Mobile Phone Signal Jammer Advanced White Noise Technology

Basic Information
Place of Origin: China
Brand Name: GREETWIN
Certification: SGS, ISO9001
Model Number: GW-JN8DGN
Minimum Order Quantity: 1PCS
Price: Negotiable
Packaging Details: Box With PE Foam
Delivery Time: 3 Working Days After Received Payment
Payment Terms: L/C, T/T, PayPal, Western Union, MoneyGram
Supply Ability: 20000PCS per Month
Product Name: Digital 4 Antennas Portable Jammer Advantage: Can Jam 8 Frequency Band With 4 Antennas
Special: The Most Advanced White Noise Technology Coverage Area: 300 - 3000 Suqare Meters Depending On Cell Phone Signal Strength
Power Adapter: Can Be Charged By Car Adapter Directly Antennas:: 4PCS Omni Antennas
Warranty: One Year Weight: 0.95Kg
High Light:

mobile phone scrambler


mobile phone blocker jammer



GSM 3G 4G Handheld Mobile Phone Signal Jammer Advanced White Noise Technology


The Model GW-JN8DGN with 6.5W output power, Jamming Range 10-30m. Helping more people to protect personal information and personal safety is the pursuit of our company , we have been committed to provide better products and services to customers around the world.


As a long-term development of the trade-oriented factory, GREETWIN COMPANY knows the importance of product quality, and actively carry out product quality, research and development capabilities.

More and more reliable quality access to the global customer welcome for our global Layout laid a solid foundation.


This jammer is the industry's most effective handheld device, the unique design allow it can use four antennas block 8 frequency, which in the industry is also countable, and has been the customer's praise .We will continue to introduce new products to meet customer needs.


Specification of Antennas with Frequency Range:

Antennal 1 channel: 791~821MHz&925~960MHz

Antennal 2 channel: GPSL2&GPSL1

Antennal 3 channel: 1805~1880MHz&2110~2170MHz

Antennal 4 channel: 2400~2485MHz&2620~2690MHz


Signal Jammer Applications:

Border control units, checkpoint personnel, Meeting rooms, Hospitals,

Banks, Churches, Conference Rooms, etc


Signal Jammer Features:

(1) Recharging Time of Battery is just 3 hours with 12V/2A adapter

(2) Easy carry because compact Size

(3) Individual channel on/off with selector switches

(4) Can be charged by DC 12-24V and AC 100 -240V.

(5) Jamming Eight RF frequencies with four antennas.

(6).Recharging Time of Battery is just 3 hours with 12V/2A adapter;

(7) Good cooling fans guarantee effective heat dissipation

(8) The digital signals modulated to VCO, produce RF signals, resemble noise signals in the RF spectrum, guarantee the interference efficiency between the traditional VCO and digital interference source.


Signal Jammer Specifications:


Type Output port Frequency Output power(±1dBm)




8 Band Digital Handheld Jammer

LTE800 791-821MHz 31dBm
GSM900 925-960MHz 30dBm
GPS L2 1227.6±2MHz 24dBm
GPS L1 1575.4±2MHz 26dBm





WCDMA 3G 2110-2170MHz 29.5dBm
WiFi 2.4G 2400-2500MHz 29.5dBm
LTE2600 2620-2690MHz 29.5dBm
Can customize frequency LTE2300 2300-2400MHz 29.5dBm
CDMA800 851-894MHz 31dBm
LTE700 725-770MHz 31dBm
Power supply: 50 to 60Hz, AC 100 to 240V
With AC adapter (DC12-24V), Built-in Battery 4300mAh
Total Output power: 6.5Watt
Working time: 1.5 hours
Recharging Time of Battery: 3 hours with 12V/2A adapter
10-30M @ depending on the Signal strength

Weight: 950g
Dimension: 90x38x156mm and not include antennas

Packing Dimension: 70x210x240mm

4pcs External Omni-directional Antennas
Running temperature: -10'C to +55'C




GSM 3G 4G Handheld Mobile Phone Signal Jammer Advanced White Noise Technology 0

Contact Details

Phone Number : +8615112267605

WhatsApp : +8615112267605