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Children's intercom "Pereklichka-M" has been produced possibly since 1985 in Leningrad.
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The intercom is intended for two-way wire communication between two subscribers at the distance of the existing double wire, the set includes a wire about 10 meters long.
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One intercom has an audio frequency amplifier powered by a Krona battery, a double call button (one call tone 1 kHz, second gear) and a loudspeaker, the other device has only a loudspeaker and a call button.
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