| EARPHONE IMPEDANCE RATING | 150.0 OHMS NOMINAL |
| EARPHONE QUANTITY | 1 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HEADSET ENCOREPRO 540 |
| MICROPHONE MOUNTING FACILITY | BOOM ATTACHED TO HEADBAND |
| MOUNTING METHOD | SUSPENDED ON ADJUSTABLE HEADBAND EARPHONE |
| SPECIAL FEATURES | FREQUENCY RANGE 150 TO 6800 HZ; NOISE CANCELLING MICROPHONE; QUICK DISCONNECT FOR SUPPORT OF MULTIPLE CONNECTIVITIES |