Designed to work with radio communication sets.
Suitable for operation at temperatures from minus 40 ºС to 50 ºС and high relative humidity to 98% at temperature of 35 ºС
| Operating frequency range, Hz | 200 – 5000 |
| Sound pressure level of the telephone at a frequency of 1000 Hz, not less than, dB | 110 |
| The module of the electrical impedance of the telephone at a frequency of 1000 Hz, Ohm | 20±4 |
| Paraphonic sensitivity of the microphone, not less than, mV / Pa | 5 |
| Axial selectivity of the microphone to the spherical field at a frequency of 150 Hz, not less than, dB | 12 |
| Weight, no more | 150 |
