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From 1978 to 1991, the Alma-Ata subscriber loudspeaker was produced by the Alma-Ata plastics processing plant. (He entered the Kzyl-Tu software). Cordless souvenir subscriber loudspeaker "Alma-Ata" is designed to work in a 30 volt radio broadcasting network. The range of reproducible sound frequencies is 250..5000 Hz. Subscriber loudspeaker dimensions - 120x65x45 mm. Weight - 400 gr.