Mir subscriber loudspeaker.
Subscriber loudspeakers.DomesticSince the beginning of 1958, the subscriber loudspeaker "Mir" has been producing the Leningrad Radio Products Plant No. 3. "Mir" is a standard subscriber loudspeaker designed to operate in a 30-volt broadcast radio network. Type 0.25GD-III. The operating frequency range is 150 ... 5000 Hz.
