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PJ-31 - 31 Bands Worldwide 5G Cell Jammer, WiFi 6E/7E & FM Radio signal Blocker
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SKU:
- PJ-31
- Free worldwide shipping, shipped within 3 days ( Configure the jammer ), delivered within 12 days
- 1 year warranty
- SSL encryption, website privacy
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No Hidden Fees – What You See Is What You Pay
Under current U.S. tariff policies, there are no extra charges added to your order for this product—unless specifically noted otherwise for certain Large desktop signal Jammers. The price you see already includes all taxes and fees, so you can shop with confidence.
Frequency and power plug are configured according to your regional standards.
This 31-channel Portable cell phone Jammer is currently (as of November 2025) the most advanced and comprehensive signal blocker available on the market. Designed to meet professional and security demands, it effectively blocks all 2G, 3G, 4G, and 5G mobile signals, as well as GPS, WiFi, UHF, VHF, RF, LOJACK, FM radio, and LoRa signals — covering a total of 31 frequency bands. The signal coverage range of this device is significantly broader than that of most frequency jammers ( include 28 bands Portable signal Blockers such as P-28Ultra and PJ-27 models ) currently available on the market.
It is the ultimate choice for users who need wide-range signal protection against the most commonly used communication frequencies.
Future-Ready Signal Blocking
In addition to traditional networks, this jammer is also compatible with upcoming technologies such as:
- 5G (3900–4200 MHz) — offering coverage for newly adopted high-frequency 5G bands.
- WiFi 7E (6450–7125 MHz) — ensuring interference with the latest WiFi 7 extended band.
It can even block less common 4G bands (725–790 MHz), giving you complete control over every potential signal source.
Compact, Portable, and Powerful Design
Engineered for mobility, this handheld jammer offers a lightweight yet durable build, ideal for both indoor and outdoor use.
The device features three built-in cooling fans and an enhanced heat sink, ensuring stable and safe operation even during extended use.
Equipped with new 2.5dBi high-gain omni-directional antennas, it guarantees stronger coverage and more reliable performance than ever before.
Technical specifications:
| Specification | Details |
|---|---|
| Output Power | 30W high-efficiency output |
| Power Supply | AC 100–240V input / DC 12V 10A output |
| Total Weight | 3.74 kg (complete set) |
| Dimensions | 208 × 147 × 70 mm (excluding antennas) |
| Antenna Length & Gain | 193 mm, 2.5 dBi gain |
| Shielding Range | 10–25 meters @ -70 dBm (depends on local signal strength) |
| Battery Capacity | Built-in 7.4V / 17,000 mAh rechargeable battery |
| Operating Time | Over 90–100 minutes per full charge |
| Cooling System | High-efficiency aluminum radiator with triple cooling fans |
| Independent Band Control | DIP switches allow turning each frequency band on/off without affecting others |
| Car Compatibility | Can be powered directly using the included car or AC charger |
| Smart Display | Real-time screen shows power level, voltage, current, and operating status |
| Compact & Portable | Lightweight design, easy to carry and deploy anywhere |
| Continuous Operation | Supports use while charging for uninterrupted functionality |
| Omni-Directional Coverage | 2.5 dBi antennas provide stable 360° shielding performance |
| Custom Manufacturing | OEM and ODM orders available, including logo printing service |
The PJ-31 is a jammer that operates from 87 to 7125 MHz. Below you can find all the operating frequencies:
1. LOJACK/VHF: 135-174MHz
2. GPS L2-L5: 1170-1280MHz
3.DCS/ PCS: 1805-1990MHz
4. RF: 433 MHz
5. GPS L1: 1570-1615MHZ
6. 5G3: 3900-4200MHz
7. 3G: 2110-2170MHz
8. CDMA/GSM: 850-960MHz
9. 4G1: 738-821MHz
10. RF: 868MHz
11. RF: 315MHz
12. 3G1: 2010-2035MHz
13. UHF: 400-470MHz
14. 4G2: 725-790MHz
15. 5G1: 3300-3600 MHz
16. LORA: 900-930MHz
17: GPS L3-L4: 1370-1390 MHz
18: WIFI 5.2G: 5100-5600MHz
19: 5G2: 3600-3800 MHz
20: WIFI 6E: 5925-6450MHz
21: 4G: 2620-2690 MHz
22: 4G4: 2500-2620 MHz
23: PCS: 1920-1990 MHz
24: 4G3: 1417-1518 MHz
25: 4G5: 2300-2400 MHz
26: 4G6: 1700-1800MHz
27: 5G: 617-685 MHz
28:WIFI 5.8G: 5600-5900MHz
29:WIFI 2.4G: 2400-2485MHz
30:WIFI 7E: 6450-7125MHz
31:FM Radio: 87-108MHz
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