4 Antennas Jam 8 Band Portable Signal Jammer , phone signal scrambler For Personal Privacy

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: High Performance Handheld Mobile Phone Signal Jammer Advantage: Each Antennas Can Jam 2 Frequency Band
Band: Four Antennas Jamming 8 Frequency Band Coverage Area: 10 - 30 Meters Depending On Cell Phone Signal Strength
Special: White Noise Technology Operating Temp: -10℃ To +55℃
Warranty: One Year Weight: 0.95Kg
High Light:

mobile phone scrambler


mobile phone blocker jammer


4 Antennas Jam 8 Band Portable Signal Jammer , phone signal scrambler For Personal Privacy



As the latest product of our company's 2017 hand-held jammers, this blocker is popular with long range, compact and lightweight designs. The most noteworthy is the use of the 4 antenna design, you can perfectly shield the 8 channels frequency, while ensuring the shielding effect, but also to the machine more beautiful.


This jammer is the industry's most effective hand-held jammer 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


Portable Signal Jammer Applications:

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

Banks, Churches, Conference Rooms, etc


Portable Signal Jammer Features:

(1) Good cooling fans guarantee effective heat dissipation

(2) Four antennas can block 8 Eight RF frequencies

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

(4) Easy carry because compact Size

(5) Individual channel on/off with selector switches

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

(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.


Portable 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

Contact Details

Phone Number : +8615112267605

WhatsApp : +8615112267605