How long can the device work continuously?

The device supports 24 hours continuous working due to its good cooling system.

What are the main applications for this jammer?

It is suitable for conference rooms, auditoriums, law courts, libraries, exam rooms, schools, cinemas, theaters, hospitals, and government security centers.

8 Antennas Adjustable All in One Desktop Phone 2g 3G 4G GPS Jammer

Name: 8 Antennas Adjustable All in One Desktop Phone 2g 3G 4G GPS Jammer
Brand: Shenzhen Greetwin Telecom Co., Ltd
SKU: 2193935915

Guangdong, ChinaShenzhen Greetwin Telecom Co., Ltd

US$86.00-90.00

1 Piece

Product profile

Customization

Available

Frequency Range

2g/3G/4G/2.4G/WiFi/GPS etc

Frequency

20-6000MHz

Model NO.

GW-JC8

Application

School Home Hall Office Hospital

Colour

Black

Size

45*24*8.5cm

Jamming Range

up to 40meters, Depend on Signal Strength

Antenna

8 PCS Omni Antennas

Output Power

18W

Jamming Radius

up to 40meters

Working Time

Continuous

Transport Package

Neutral Packing

Specification

ISO9001

Trademark

Greetwin

Origin

Shenzhen

HS Code

8517699000

Production Capacity

10, 000PCS/Month

Key features

24/7 Continuous Operation: Equipped with a high-quality cooling system for 24 hours nonstop working.

High Power Output: 18W total output power ensures efficient signal blocking up to 40 meters.

Multi-Band Coverage: Blocks 2G, 3G, 4G, WiFi, Bluetooth, GPS, and LoJack simultaneously.

8 Omni Antennas: Eight omnidirectional antennas provide stable and wide-range jamming.

Customizable Frequencies: Supports customization for various bands including VHF, UHF, and specific LTE channels.

Wide Application Scenarios: Ideal for schools, hospitals, courts, libraries, and secure command centers.

Stable Performance: Designed for stable capability and cost-effective signal blocking.

Complete Accessories: Includes 8 antennas, power cable, remote control, and fixed mount.

Company profile

High Repeat Buyers ChoiceYears of Export Experience3D Software DesignR&D Capabilities

Shenzhen Greetwin Telecom Co., Ltd

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2009-08-01Nearest Port: ShenzhenAverage Response Time: ≤5.59hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CIF, EXW, Others

AI-Powered supplier vetting

SummaryThe supplier is explicitly identified as a manufacturer with three production lines and stated output for mobile signal boosters and signal jammers. It offers extensive customization, ODM services, and OEM services for well-known brands, and reports new products within the past year. Its business scope covers communication, security, electronic, and related technical services. Export activity is established, with 51%–70% of sales from exports and markets across multiple regions. Quality and service procedures are documented and followed, including finished-product inspection, corrective actions, and complaint handling. However, no certification information, customer case details, or SDK availability is provided. The supplier reports no in-stock service, overseas warehouse, or overseas showroom capability. Financial information is limited to referenced years and does not provide sufficient evidence to assess financial credibility.

Supplier typeThe supplier is explicitly classified as a manufacturer, and its offering description includes manufacturing capacity and related operational capabilities. This supports identifying it as a manufacturing supplier rather than only a trading or service company.

After-Sales capabilityThe supplier has documented and followed procedures for customer complaints, corrective and preventive actions, and service-capability assessment. However, it reports no in-stock service, overseas warehouse, or overseas showroom capability, so support is procedurally established but geographically and inventory-wise limited.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and supports multiple forms of customization. It does not have an available SDK, but the evidence still supports product-development capability.

Production capacityThe supplier is a manufacturer operating three production lines, with stated annual quantities of 2,000,000 mobile signal boosters and 2,000,000 signal jammers. It also has valid manufacturing contracts with associated subcontractors and documented finished-product inspection procedures, although it has no in-stock service capability.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also offers ODM services, providing strong direct evidence of broad customization capability.

Product Q&A

Q:What payment methods are available?

T/T, Western Union, Paypal, and Credit Card are available. We suggest paying by Alibaba Trade Assurance for the best security.

Q:What is the delivery lead time?

For orders under 20 pcs, lead time is 3-5 business days. For 20-100 pcs, it is 7-15 business days. For over 100 pcs, it is 15-24 business days.

Q:Can I customize frequencies?

Yes, we can customize 2G/3G/4G/5G/LoJack 173MHz, VHF, UHF, Walkie-talkie, interphone, 433MHz, 315MHz, 868MHz, 450MHz, iDEN, CDMA, GSM, GPRS, DCS, PCS, AWS, WCDMA, UMTS, 3G, 4G, LTE 700, LTE 800, LTE 2300, LTE 2600, GPS L1, GPS L2, Galileo, Compass, Glonass, WIFI, Bluetooth, WIMAX, UAV, Drone, 5.8G, etc.

Q:What should I do if I don't know about frequency in my country?

Please feel free to Contact us with your inquiry, we will find the frequency you need and address your problems.

Q:What is the jamming range?

The jamming range is up to 40 meters, depending on the local signal strength.