120W Full-band K-16 Omnidirectional Cell Phone Blocker 5G WIFI Blocker for School Exam - DescBoost
Chart detailing specifications of an interference device
120W Full-band K-16 Omnidirectional Cell Phone Blocker 5G WIFI Blocker for School Exam - DescBoost
120W Full-band K-16 Omnidirectional Cell Phone Blocker 5G WIFI Blocker for School Exam - DescBoost
Diagram of a network setup with routers, switch, and phone blockers.
120W Full-band K-16 Omnidirectional Cell Phone Blocker 5G WIFI Blocker for School Exam - DescBoost
Classroom with a phone blocker device and text about creating a fair exam environment.

120W High-power Mobile Signal Interference With Build-in Omnidirectional Antennas

$480.00

Enhanced Anti-Cheating Solution for Exam Environments

  • UHF Full-Band Blocking: Precisely disrupts 2/3/4/5G, Wi-Fi, Bluetooth & GPS to protect every corner from cheating.
  • Omni-Directional Coverage: Blocks signals in all directions to ensure no blind spots and full exam hall protection.
  • Flexible Installation & Coverage: Wall, desktop, or ground placement with 10–50m blocking range to fit any exam room.
  • 24/7 Reliable Continuous Operation: Advanced aluminum radiator and silent fans provide stable, 24-hour uninterrupted protection.
  • Flexible Upgrades: Supports network control module for IP remote management and future-proof enhancements.
  • Customizable Frequency Bands: Expandable shielding bands to tailor protection for diverse exam environments
  • Factory-Direct Reliability: 21 years of R&D, certified quality, and global technical support.
Overview


Dexinakng Mobile Signal Interference Manufacturer

The Mobile Signal Interference System is a high-power, full-band wireless interference solution designed for critical environments where mobile communication must be strictly controlled. Equipped with omnidirectional high-gain antennas and multi-channel segmented interference technology, it provides stable, long-distance interference against 5G, 4G, Wi-Fi, Bluetooth, GSM, and GPS signals.

Advanced Technology

Engineered with high-performance radio frequency modules, the mobile signal interference system delivers powerful, stable, and precise full-band interference to support controlled wireless environments in authorized facilities.

Next-Generation UHF Interference Technology
Generates clean and stable interference signals across 2G–5G networks, Wi-Fi, Bluetooth, and optional VHF/UHF communications.

Omnidirectional High-Gain Antenna Array
Provides extended interference distance with true 360° coverage, ensuring no blind spots.

Dual Status Display
Real-time voltage and working-status analysis for easier operation, management, and maintenance.

Industrial-Grade Cooling System
Six silent fans combined with aluminum alloy heat sinks ensure excellent thermal performance, supporting continuous high-power 24/7 operation.

Features & Benefits

Full-Band Interference Coverage
Interferes with 2G–5G mobile signals, Wi-Fi, Bluetooth, GPS, and optional walkie-talkie frequencies to maintain controlled wireless conditions within authorized facilities.

120W High-Power Output
Delivers strong penetration and extended coverage, effectively interfering with weak-signal areas near walls and windows, enabling full-area coverage with a single unit.

Omnidirectional High-Gain Antenna
Ensures uniform interference coverage without dead zones.

Soft-Start Circuit Design
Protects internal components and extends overall device lifespan.

Flexible Deployment Options
Supports wall-mounted or desktop installation for fast and convenient setup.

How phone blocker works emitting radio frequencies to block communication signals
Cell phone blocker and 5G blocker used in examination, meeting room, and library
Why choose our Signal Blocker? We are the Primary Factory with a Professional Team.
9-step ODM/OEM manufacturing workflow for a Wireless Signal Blocker device.

FAQs

  1. Is the omnidirectional mobile signal interference system effective in high-signal environments (e.g., near mobile towers)?
    Yes. Even in locations with strong external signals, such as areas near mobile towers, the system maintains reliable interference performance using high-power RF modules and high-gain antennas.

  2. Will the mobile signal interference affect other electronic devices such as projectors or microphones?
    No. The system only interferes with wireless communication signals (mobile networks, Wi-Fi, Bluetooth, GPS) and does not affect wired equipment such as projectors, printers, or audio systems.

  3. Can the interference range be adjusted for different facility sizes?
    Yes. The interference range is adjustable from 1 m to 30 m, allowing precise coverage control for different room sizes and layouts without affecting surrounding areas.

  4. Will multiple mobile signal interference units affect each other in large authorized facilities?
    No. With proper placement, multiple units operate smoothly without mutual interference. Layout recommendations are available to ensure optimal performance.

  5. Is additional outdoor equipment required for complete interference coverage?
    In most cases, no. However, in locations with strong external signal sources, an outdoor interference unit can be added to enhance overall coverage.

  6. Does installation require modifying building structures?
    No. The system supports wall-mounting, ceiling-mounting, or flat-surface placement without structural changes, ensuring easy integration into authorized facilities.

  7. Can the system operate continuously without overheating?
    Yes. The built-in cooling system and soft-start circuit support stable 24/7 continuous operation.

  8. Do you offer customization for specific authorized facility requirements?
    Yes. OEM/ODM services are available to customize power levels, interference frequency bands, and housing designs to meet specific project or facility needs.

Specification

Parameters Performance and Metrics
Size 465 × 433 × 89 mm (Length × Width × Height)
Weight 4.5 kg
Shielding Range 10–50 meters (depending on the strength of the base station signal)
Power Supply & Consumption AC 110–220V / DC 24V / 25A, Power Consumption: 500W
Operating Temperature -10℃ to +55℃
Storage Temperature -20℃ to +60℃

Electrical Parameters

Output Terminal Operating Frequency Frequency Range Output Power Channel Output Power
5G 758–803 MHz 40 dBm (10W) 5 dBm / 30 kHz (min)
CDMA 870–880 MHz 40 dBm (10W) 5 dBm / 30 kHz (min)
GSM 930–960 MHz 40 dBm (10W) 5 dBm / 30 kHz (min)
DCS 1805–1880 MHz 39.5 dBm (9W) 2 dBm / 30 kHz (min)
PHS 1880–1990 MHz 39.5 dBm (9W) 2 dBm / 30 kHz (min)
3G 2010–2145 MHz 39 dBm (8W) 2 dBm / 30 kHz (min)
3G1 2110–2170 MHz 39 dBm (8W) 2 dBm / 30 kHz (min)
4G1 2300–2390 MHz 39 dBm (8W) 2 dBm / 30 kHz (min)
4G2 2500–2600 MHz 39 dBm (8W) 2 dBm / 30 kHz (min)
5G 2600–2690 MHz 39 dBm (8W) 2 dBm / 30 kHz (min)
WiFi 2.4G 2400–2500 MHz 37 dBm (5W) 2 dBm / 30 kHz (min)
WiFi 5.2G 5150–5300 MHz 37 dBm (5W) 2 dBm / 30 kHz (min)
WiFi 5.8G 5725–5850 MHz 37 dBm (5W) 2 dBm / 30 kHz (min)
5G1 3300–3500 MHz 38.5 dBm (7W) 2 dBm / 30 kHz (min)
5G2 3500–3800 MHz 38.5 dBm (7W) 2 dBm / 30 kHz (min)
5G3 4800–4960 MHz 37 dBm (5W) 2 dBm / 30 kHz (min)
VHF (optional) 136–174 MHz 37 dBm (5W) 2 dBm / 30 kHz (min)
UHF (optional) 400–470 MHz 37 dBm (5W) 2 dBm / 30 kHz (min)

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