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16 Antennas Anti-Cheating Exam Room Signal Blocker 20-100M Coverage Blocks All Cell Phones WiFi And

Signal Jammer
August 18, 2026
Keyword: Indoor Signal Jammer
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Tags:
#25W Indoor Signal Jammer #25W Wifi Signal Jammer #wifi blocker jammer
Video Description:
Want to know how this 16-antenna signal jammer ensures exam integrity? In this video, we demonstrate its complete signal blocking capabilities for classrooms and examination halls. You'll see how it effectively blocks all cellular networks (3G/4G/5G), WiFi signals, GPS tracking, and remote control frequencies within a 20-100 meter range. We walk you through the adjustable antenna setup, operational features, and real-world deployment scenarios to maintain academic fairness.
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