Is the antenna built-in or detachable?

It features a built-in directional antenna, though it uses an outer detachable power supply.

Where can this jammer be used?

It is suitable for libraries, churches, meeting rooms, prisons, government departments, and other areas requiring quiet conditions.

What is the power supply requirement?

It requires an AC adapter with input AC220V and output DC19V.

RF Jammer for Meeting Room Support 2g 3G 4G Cell Phone Jammer

Name: RF Jammer for Meeting Room Support 2g 3G 4G Cell Phone Jammer
Brand: Shenzhen Greetwin Telecom Co., Ltd
SKU: 2024400815

Guangdong, ChinaShenzhen Greetwin Telecom Co., Ltd

US$120.00-150.00

1 Piece

Product profile

Customization

Available

Frequency Range

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

Frequency

900/1800/2100/2600/2400

Model NO.

GW-JKX12

Application

Outdoor/Company/Office

RF Output Power

22 Watts

Gross Weight

3.6kg

Dimensions

350X278X98mm

Shielding Range

10 - 40 M

Power Supply

AC Adapter (AC220V-DC19V)

Transport Package

Neutral Packing

Specification

ISO9001

Trademark

Greetwin

Origin

Shenzhen

HS Code

8517699000

Production Capacity

10, 000PCS/Month

Key features

High Power Output: 22 Watts total output power effectively blocks multiple signal bands.

Multi-Band Blocking: Blocks 8 frequency bands including 2G, 3G, 4G, WiFi, and GPS simultaneously.

Extended Jamming Range: Effective shielding range up to 60 meters depending on signal strength.

Continuous Operation: Built-in cooling fans and heat sink design ensure nonstop working hours.

Customizable Frequencies: Frequencies can be customized to specific requirements like Walkie Talkie or LTE.

Directional Antenna: Equipped with built-in directional antenna for focused signal blocking.

Wide Application Scope: Suitable for libraries, prisons, meeting rooms, churches, and government departments.

User-Friendly Control: Features a user-friendly ON/OFF switch for easy operation.

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.