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The office voice recorder "Nida" from 1966 produced the Vilnius instrument-making plant "Vilma". '' Nida '' is a cabinet unit with power from the network. Voice Recorder allows you to record telephone conversations when using a special adapter attached to the handset. Playback is carried out on a 0.5GD-17 loudspeaker or on a TON-2 telephone included in the line-out. The microphone has a button for stopping or starting the voice recorder during recording; similar playback control is performed via a flexible roller using a pedal that controls the tape rollback. Bandwidth through channel 300 ... 3500 Hz. Interference level - 35 dB. SOI on LV - 7, on the loudspeaker 10%. High frequency magnetization and erasure. Erase level - 50 dB. The rated output power of the amplifier is 250 mW. The recorder was made on the basis of the military dictaphone "P-180". Compressor excluded from the scheme. Modifications to the "Nida" recorder were made simultaneously with the modernization of the "P-180" recorders.