Suitable for operation at temperatures from minus 50 ºС to 55 ºС and high relative humidity to 100% at temperature of 35 ºС.
| Operating frequency range, Hz | 150 – 7000 |
| The module of the electrical impedance of the telephone at a frequency of 1000 Hz, Ohm | 300 ± 60 |
| The module of the input resistance of the receiving path at a frequency of 1000 Hz, Ohm | 600 ± 120 |
| The output voltage of the electro-acoustic transmission path when sounding the microphone with a noise signal of the speech spectrum with a level of 104 dB, mV | 1 |
| Weight, no more | 0,3 кг |
| Cord Length, m | 1,2 |
