| Chestpiece : Dual head nonchill rim & diaphragm |
| Diaphragm : Tunable diaphragm |
| Binaural : Dual-leaf spring encased at 15° angle |
| Operating temperature range : 0° C ~ 40° C (32°F ~ 104° F) |
| Operating humidity : Less than 95% RH |
| Storage temperature range : -10° C ~ 50° C (14°F ~ 122° F) |
| Storage humidity : Less than 95% RH |
