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120W Full-band K-16 Omnidirectional Cell Phone Blocker 5G WIFI Blocker for School Exam
Overview
No Signals. No Cheating. No Compromise
By deploying classroom cell phone blockers, schools can instantly block calls, texts, and data connections—eliminating cheating methods, hidden devices, and unauthorized communication, while creating a secure, distraction-free, and fair examination environment.
Our portable cell phone blockers are plug-and-play devices—just switches, an indicator light, and built-in antennas. Advanced cellular blockers allow adjustable range control, ensuring coverage is limited to the classroom without affecting neighboring areas.
FAQs
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Is the omnidirectional signal blocker effective in high-signal environments (e.g., near mobile towers)?
Yes, even in areas with strong external signals, such as near mobile towers, our omnidirectional blocker ensures reliable performance due to its high-power RF modules and high-gain antennas, effectively maintaining a fair examination environment free from external interferences. -
Will the signal blocker interfere with other electronic devices like projectors or microphones?
No, the blocker only affects wireless communication signals (mobile, Wi-Fi, Bluetooth, GPS) and does not interfere with wired devices such as projectors, printers, or classroom sound systems, ensuring normal teaching and exam operations. -
Can I adjust the blocking range for my examination hall?
Yes, the blocking range is adjustable from 1m to 30m, allowing for precise coverage of exam halls of different sizes without affecting nearby classrooms or office areas. -
Will multiple omnidirectional blockers interfere with each other in a large examination hall?
No, with proper placement, multiple blockers will not interfere with each other. We provide layout recommendations to ensure that each unit works seamlessly without overlap or signal leakage, maintaining the integrity of the exam environment. -
Do I need to install additional equipment outside the examination building for full coverage?
Typically no additional equipment is needed. However, in schools located near mobile towers or areas with strong external signals, an outdoor unit can be added to strengthen coverage and prevent unauthorized communications from penetrating the exam halls. -
Does installation require modifying the classroom structure?
No, our devices are flexible in installation. They can be wall-mounted, ceiling-mounted, or placed on any flat surface without any structural modifications, making them easy to integrate into school facilities. -
Can the device run continuously without overheating during long exam sessions?
Yes, the system supports continuous operation with built-in cooling systems and soft-start circuits, ensuring stable 24/7 operation throughout exam periods without cheating risks. -
Do you offer customization for school examination needs?
Yes, we provide OEM/ODM services to tailor power levels, frequency bands, and housing designs to fit specific school requirements, ensuring exam fairness and confidentiality according to your institution’s needs.
Attention:
Compliance & Legal Information
United States (FCC Regulations)
Our cell phone blocker and drone blockers comply with FCC Part 15 regulations; use is restricted to authorized environments.
Private placement is strictly prohibited by law. Please consult local authorities before deployment.
European Union (EU Authorization)
Usage of our blockers in public environments requires authorization from local communications regulators. Only approved sites are allowed.
Pakistan＆Brazil＆Indonesian＆Russian＆Singapore&Mainland China
Deployment requires approval from relevant government authorities. Use is restricted to educational, confidential, and designated security areas.
Safety & Certifications
Certified (CE, FCC, RoHS). Does not interfere with emergency or life-critical equipment. Only for legal, authorized uses.
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) |