This earpiece is compatible with HYT TC446S, TC518, TC610, TC620, TC700, POWER446. SPEAKER MIC & COVERT EARPIECE FITS HYT TWO WAY RADIO TC610 TC620 RS-ACC-M1S. 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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