Specifications of ECN20-Ex
| Weight | about 600 g |
| Color | blue & black |
| PTT Key | available |
| VOX | none |
| Emergency Key | none |
| Connector | 16-pin connector |
| Microphone Sensitivity | –50±4 dB @ 1 kHz 3.0 V 2.2 K, 0 dB = 1 V/Pa |
| Speaker Power | 200 mW (rated); 500 mW (max.) |
| Speaker Impedance | 2x150 Ω±15% @ 1 kHz |
| Speaker Frequency Response | 80±3 dB @ 1 kHz 0.2 W/30 cm |
| IP Rating | IP54 |
| Anti-explosion levels | ATEX(Ex ib IIC T4 Ex ib IIIC T135℃) |
| Operating Temperature | –20℃ to 50℃ |
| Storage Temperature | –20℃ to 65℃ |