Motorola PMMN4128A (RM780) IMPRES UL Remote Speaker Microphone. The Motorola PMNN4128A (also know as RM780) large RSM provides 102 Phon loudness with a windporting microphone. RM780 is IP68 rated, Work-When-Wet and UL approved.
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Motorola PMMN4128A Remote Speaker Microphone RM780. Motorola PMMN4128A (RM780). The Motorola PMNN4128A (also know as RM780) large RSM provides 102 Phon loudness with a windporting microphone. RM780 is IP68 rated, Work-When-Wet and UL approved.
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