Параболический микрофон направленный " PRM-1 "

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Красивый Дом
Parabolic directional microphone "PRM-1" Technical specifications: - Headphones and directional microphone - Parabolic mirror diameter: approx. 26cm - Weight microphone: approx. 360g - Weight headphones: approx. 200 g - Observation distance: approx. 90m - 37-fold amplification of the volume - Recording time: approx. 13sec (internal memory) - Infinitely adjustable sensitivity - Operation via 9V battery (not included) _____ Shopping on ebay:

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