| EARPHONE CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| EARPHONE ELEMENT TYPE | MAGNETIC |
| EARPHONE IDENTIFYING NUMBER | HC4 PART NO. |
| EARPHONE IMPEDANCE RATING | 650.0 OHMS NOMINAL |
| EARPHONE MOUNTING METHOD | SUSPENDED ON HEADBAND |
| EARPHONE QUANTITY | 1 |
| CONNECTOR CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| CONNECTOR IDENTIFYING NUMBER | 289B PART NO. |
| CONNECTOR NAME | PLUG |
| CONNECTOR TO JUNCTION CORD LENGTH | 12.000 FEET |
| CONTROLLING AGENCY | WESTERN ELECTRIC CO INC |
| DC RESISTANCE RATING IN OHMS | 50.0 NOMINAL |
| IDENTIFYING NUMBER | N1 PART NO. |
| OPERATING CURRENT RATING | 100.0 MILLIAMPERES NOMINAL |
| MICROPHONE ELEMENT TYPE | CARBON |
| MICROPHONE MOUNTING FACILITY | TUBE ATTACHED TO EARPHONE HANDLE |