Specifications of EHN12-Ex
| Weight | about 50 g |
| Color | black |
| PTT Key | available |
| VOX | none |
| Emergency Key | none |
| Microphone Sensitivity | –45±3 dB @ 1 kHz 3.0 V 2.2 K, 0 dB = 1 V/Pa |
| Speaker Power | 50 mW (rated); 100 mW (max.) |
| Speaker Impedance | 150 Ω±15% @ 1 kHz |
| Speaker Frequency Response | 108±3 dB @ 1kHz at 0.387 V |
| IP Rating | IP6X |
| Anti-explosion levels | ATEX, IECEx, FM, CQST, and CSA |
| Operating Temperature | –20℃ to 60℃ |
| Storage Temperature | –40℃ to 85℃ |