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Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use
Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use
Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use
Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use
Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use

Portable 5G 4G 3G 2G Signal Blocker with Built-in Battery and Cooling System for Security Use

US$ 1 ~ 10
Min.Order: 1
Product origin: Shenzhen, Guangdong, China
Category: Electronics
Product Name: Electronics
Availability:In Stock
Product Review : 1 Reviews
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  • Model Number : GW-JN12XFM
  • Frequency Bands : 12 Bands (LTE700, GSM900, DCS1800, 3G, 4G, 5G, WiFi2.4/5G, GPS, Lojack)
  • Output Power : 60W (36dBm-39dBm per band)
  • Blocking Radius : 5-20 meters (depending on signal strength)
  • Power Supply : AC110-240V, DC12V Car Charger
  • Battery Capacity : 7.4V/10000mAh Li-ion
  • Working Time : 45-60 minutes continuous use
  • Cooling System : Aluminum alloy radiator with 3 cooling fans
  • Dimensions : 215 x 140 x 90mm (without antenna), 395 x 140 x 90mm (with antenna)
  • Net Weight : 3.65kg
  • Operating Temperature : -20°C to +55°C
  • Warranty : 1 year

It covers 12 bands from LTE700 all the way up to 5G and WiFi 2.4/5G, plus GPS and Lojack, so you’re pretty much shutting down anything in the 5-20 meter radius depending on local signal strength, and the 60W total output means each band hits between 36dBm and 39dBm.

12 Band Signal Jammer

We’ve seen most buyers go with the built-in 7.4V/10000mAh Li-ion battery for portable work, giving you 45-60 minutes continuous use, but you can also AC110-240V or a DC12V car charger if you’re running it longer.

Signal Jammer Internal View

The aluminum alloy radiator with three cooling fans handles thermal load better than most handheld units we’ve tested—it actually stays cool enough to hold after 30 minutes of operation, though the 3.65kg weight means you’re not walking around with it hands-free for long shifts.

Signal Jammer Frequency Bands

For bulk orders, we typically quote 4-6 weeks lead time for 100 units or so, and the MOQ is usually 10 pieces if you want custom frequency config (our company can adjust band power output on request, but that adds about 2 weeks).

Signal Jammer in Use

What it’s not great for is open-field interference where you need a 50-meter radius—that’s a different class of unit entirely—but for indoor security sweeps, vehicle checkpoints, or meeting room control, the 5-20 meter range is actually more practical because you don’t spill signal into adjacent spaces.

Signal Jammer Package

The 1-year manufacturing defects, and we’ve had less than 2% return rate on this model in the last two years, but you’ll want to verify the operating tempearture range (-20°C to +55°C) if you’re deploying in a desert enviroment since the battery performnce drops noticeably above 50°C.

Frequently Asked Questions

What's the minimum order quantity for the GW-JN12XFM signal blocker?

We typically require a minimum order of 10 units for first-time buyers, but we can negotiate smaller trial orders if you're evaluating the product for a specific security application.

Can you provide a certification or test report for the 60W output power per band?

Yes, we have a CE and RoHS compliance report available upon request, and we can share a factory test certificate showing the 36dBm-39dBm per band output. Just let us know what documentation you need for your local regulations.

How long does the built-in 10000mAh battery last when jamming all 12 bands at once?

With all bands active, the battery gives you 45-60 minutes of continuous use. If you only enable specific frequencies—like just 5G and WiFi—you might stretch that closer to 60 minutes since the load is lighter.

Does the cooling system keep the device stable in high-temperature environments, like 50°C?

Absolutely. The aluminum radiator plus three cooling fans are designed to handle continuous operation up to 55°C ambient temperature. We've tested it at 50°C for 2-hour cycles without thermal throttling.

What's the actual blocking radius for 5G and GPS bands specifically?

For 5G, expect 5-15 meters depending on the carrier's signal strength. GPS and Lojack are easier to jam due to weaker satellite signals, so you'll get the full 20 meters. The 2.0dbi antennas are tuned for these bands.

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