Speech Protectors - Intensity of ultrasonic interference - 41 × 128-132 dB
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EO-1 Omnidirectional Speech Protector
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An efficient omnidirectional speech protector that protects you from all types of recording and eavesdropping devices. You can easily place…
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EO-1M Speech Protector and Signal Jammer
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The EO-1M has been designed to provide protection from covert recording devices and bugs. This unique combination of a speech protector and…