What is the shielding radius?

The shielding radius is 2-25 meters at -75dBm, depending on the signal strength in the given area.

How should I charge the battery?

Charge the battery for at least 10 hours before first use. Turn off the power switch before charging. The indicator turns RED while charging and GREEN when finished.

Can I use the device while charging?

No, it is not suggested to use the device while charging as the temperature may become too high and damage the charger or machine.

5g Jammer

Name: High Power 27 Antennas Cell Phone GPS WiFi Bluetooth Blocker Handheld 2g/3G/4G/5g Jammer
Brand: Shenzhen Greetwin Telecom Co., Ltd
SKU: 2267394295

Guangdong, ChinaShenzhen Greetwin Telecom Co., Ltd

US$590.00-630.00

1 Piece

Sample price:US$630.00/piece.Request sample

Product profile

Customization

Available

Application

Company

Frequency Range

2g/3G/4G/5g/WiFi/GPS

Model NO.

GW-JN28P

Frequency

2g/3G/4G/5g/WiFi/GPS

Output Power

28W

Blocking Radiuw

2-25meters

Gross Weight

3.0 Kg

Size

210X133X85mm (Without Antenna)

Length of Antenna

192mm

Gain

1-3dBi

Working Time

7.4V/12000mAh Continue Working: Around 80 Mins

Cooling System

Aluminum Alloy Radiator, Build-in 4X Cooling Fan

Power Supply

Adapter 50 to 60Hz AC (110-240V AC/12V DC)

Transport Package

Neutral Packing

Specification

ISO9001

Trademark

Greetwin

Origin

Shenzhen

HS Code

8517699000

Production Capacity

10, 000PCS/Month

Key features

Multi-Band Coverage: Blocks 2G, 3G, 4G, 5G, WiFi, GPS, Bluetooth, and other frequencies with 27 antennas.

Long Battery Life: Built-in 12000mAh battery provides around 80 minutes of continuous working time.

Customizable Frequencies: Supports OEM customization for special frequency bands and silkscreen printing.

Advanced Cooling System: Features aluminum alloy radiator and 4 built-in cooling fans for heat management.

Wide Power Supply: Compatible with AC 110-240V adapter and DC 12V car charger.

One-Year Warranty: Includes a comprehensive one-year warranty from the delivery date.

Global Shipping: Fast delivery available via DHL, FedEx, or UPS to America, Europe, and Asia.

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: ≤5.79hTerms 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.