| Model | ER 31/ EL 31/ EL 31 |
| Receiver | Dual Channel Non-Diversity |
| Frequency response | 50Hz – 15 Khz |
| Polar Pattern (lapel) | Cardioid |
| Output | Individual Channel: ¼” Jack
Mix out: ¼” Jack |
| Power Requirement. ( Lapel) | 9 V Alkaline Battery |
| Receiver | 240V AC 50Hz for AC Adaptor Supplied with the set |
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