| EARPHONE ELEMENT TYPE | DYNAMIC |
| EARPHONE IMPEDANCE RATING | 150.0 OHMS NOMINAL |
| EARPHONE QUANTITY | 2 |
| FREQUENCY RATING | 20.0 HERTZ NOMINAL AND 15.0 KILOHERTZ NOMINAL |
| IMPEDANCE RATING | 2.0 OHMS NOMINAL |
| MICROPHONE ELEMENT TYPE | ELECTRET CONDENSER |
| MICROPHONE MOUNTING FACILITY | BOOM ATTACHED TO HEADBAND |
| MOUNTING METHOD | SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | VXI PASSPORT 21V HEADSET QD1027 |
| SPECIAL FEATURES | SINGLE WIRE BINAURAL, NOISE-CANCELLING MICROPHONE, EXCELLENT RECEIVER AUDIO QUALITY, ADJUSTABLE, FLEXIBLE MICROPHONE BOOM |