PR860 PRO5150 PRO5350 PRO5450 PRO5550 PRO5750. HT750 HT1250 PR860 MTP700 MTP750. Should Speaker Mic for Motorola GP328 GP340 HT750 HT1250 HT1550 MTX8250 Radios. PMMN4021 Remote Speaker Microphone. Compatible with Radios.
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