This earpiece is compatible with Motorola GP344, GP388, GP644, GP688 GP344R GP388R. SPEAKER MIC & COVERT EARPIECE FITS MOTOROLA TWO WAY RADIO GP344 GP388 RS-ACC-M5. This Speaker Mic has an overall cable length of 60cm with a curly chord and the length of the listen only covert earpiece is 30cm.
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