Does the device have cooling fans?

Yes, the device is equipped with inside cooling fans to ensure stable operation.

High Power 120W Desktop 12 Bands Jammer 40m Mobile Phone Jammer

Name: High Power 120W Desktop 12 Bands Jammer 40m Mobile Phone Jammer
Brand: Shenzhen Greetwin Telecom Co., Ltd
SKU: 2012264485

Guangdong, ChinaShenzhen Greetwin Telecom Co., Ltd

US$360.00

1-49 Pieces

US$345.00

50+ Pieces

Sample price:US$420.00/piece.Request sample

Product profile

Customization

Available

Application

Company

Size

300*220*70mm

Model NO.

JT12

Humidity

5% - 95%

Power Supply

AC110-240V, DC 27V 10A

Jamming Range

20-80meters, Depend on Local Signal Strength

Weight

4kg

Running Temperature

-10℃ to +55℃

Transport Package

Neutral Packing

Specification

ISO9001

Trademark

Greetwin

Origin

Shenzhen

HS Code

8517699000

Production Capacity

10, 000PCS/Month

Key features

120W High Power Output: Delivers 120W total output power across 12 frequency bands for effective jamming.

12 Frequency Bands Coverage: Simultaneously blocks 12 bands including GSM, 3G, 4G, WiFi, and GPS.

Customizable Frequency Options: Supports customization for 2G/3G/4G/5G, UAV, Drone, and various specific frequencies.

24/7 Continuous Operation: Designed to work 24 hours a day, 7 days a week, 12 months a year.

Advanced Self-Protection: Features VSWR and temperature self-protection technology for system safety.

Independent Band Control: Each of the 12 bands has a separate switch with an LED indicator light.

Portable Trolley Design: Lightweight 4.5kg design with a trolley-like structure for easy mobility.

Dual Power Supply Support: Compatible with AC110-240V and DC 27V 10A power sources.

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: ≤6.14hTerms 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.