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Greetwin 10 Bands 2g 3G 4G Indoor 250W Prison Phone Jammer
US$10,000.00-15,000.00
1 Piece
Product profile
Customization
AvailableFrequency Range
GPS WiFi 2g 3G 4GFrequency
GPS WiFi 2g 3G 4GModel NO.
GW-J50WPMApplication
Prisons, School, Detention HouseSize
603*445*226mmTransport Package
Neutral PackingSpecification
ISO9001Trademark
GreetwinOrigin
ShenzhenHS Code
8517699000Production Capacity
10, 000PCS/MonthKey features
High Power Output: Max 250W total RF output power with 44dBm per channel.
Waterproof Design: Patent design allows installation in desert and heavy rain conditions.
10 Independent Bands: Controls 10 frequency bands independently via single switches.
Wide Frequency Range: Covers 600MHz to 6000MHz including GPS, WiFi, 2G, 3G, 4G, and more.
Smart Cooling System: Systematic smart cooling ensures long-term reliable operation.
Customizable Frequencies: Optional customization for AM, FM, VHF, UHF, and other specific bands.
Versatile Power Supply: Supports AC220V or DC24-28V power input options.
Extended Jamming Range: Effective range of 20-100m depending on mobile network signal density.
Company profile
Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2009-08-01Nearest Port: ShenzhenAverage Response Time: ≤5.34hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CIF, EXW, Others
AI-Powered supplier vetting
SummaryThe supplier is identified as a manufacturer with three production lines and stated output of mobile signal boosters and signal jammers. It provides broad customization, ODM, and OEM services, including OEM support for recognized brands, and reports product development during the past year. Its business scope covers communication, security, electronic, and related equipment, with import and export permitted. Production and export capabilities are documented, including markets across multiple regions and a stated off-peak lead time within 15 working days. Service procedures, corrective actions, complaint handling, and finished-product inspection procedures are documented and followed. However, the supplier reports no available SDK, no in-stock service, and no overseas warehouse or showroom. The provided information does not establish certifications, financial strength, or specific customer cases.
Supplier typeThe supplier is explicitly classified as a manufacturer. Its described offerings cover manufacturing capacity, quality control, R&D, export trade, and related capabilities, supporting a direct manufacturing profile.
After-Sales capabilityThe supplier has written procedures and followed records for service assessment, corrective and preventive actions, and customer complaint handling. However, it reports no in-stock service capacity, overseas warehouse, or overseas showroom, indicating procedural service capability but limited stated overseas support infrastructure.
R&D capabilityThe supplier reports new products during the past year, offers ODM services, and supports customization from samples and designs. It does not have an available SDK, which limits the documented software-development interface capability, but this alone does not negate the stated product R&D evidence.
Production capacityThe supplier is a manufacturer operating three production lines and reports annual production quantities of 2,000,000 mobile signal boosters and 2,000,000 signal jammers, with a stated off-peak lead time within 15 working days. It also has valid manufacturing-capacity contracts with each associated subcontractor, although no in-stock capacity is available.
Customization capabilityBoth slices explicitly list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also reports ODM availability, providing direct evidence of broad customization capability.
Product Q&A
Q:Will the jammer be damaged by long working time?
A:
No, it is normal for the shell to become hot. The metal shell design uses conductivity for heat sinking, allowing the machine to work well for a long time.
Q:Is the interference effect the same for GSM and CDMA phones?
A:
No. CDMA has better anti-interference capacity, so the interference effect is better for GSM phones compared to CDMA phones.
Q:Is there a difference in jamming distance between indoor and outdoor use?
A:
Yes. Outdoor signals are generally stronger, making the shielding effect worse outdoors. The effective distance depends on surrounding factors like base station distance.
Q:Does the jammer interfere with other electronic equipment?
A:
No. The electromagnetic signals are strictly within government-regulated bands and only have an interception effect on cell phone communications.
Q:Is the jammer harmful to humans or cell phones?
A:
No. The signal intensity complies with national health standards. It damages the receiving condition of the phone but does not damage the phone itself.
Send Inquiry
*To:
Shenzhen Greetwin Telecom Co., Ltd
Shenzhen Greetwin Telecom Co., Ltd*Content:
Supplier replies will be sent to your registered email
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