Designed for work at diving telephone station.
Suitable for operation at temperatures from1 0 ºС to 35 ºС and high relative humidity to 80% at temperature of 25 ºС.
| Operating frequency range, Hz | 150 – 7000 |
| The maximum sound pressure level at a frequency of 500 and 1000 Hz, not less than, dB | 136 |
| The module of the electrical impedance of the telephone at a frequency of 1000 Hz, Ohm | 60 ± 12 |
| The microphone impedance module at a frequency of 1000 Hz, Ohm | 130 ± 35 |
| Paraphonic sensitivity of the microphone, not less than, mV / Pa | 0,6 |
| Weight, no more | 0,4 кг |
| Cord Length, m | 5 |
