Works great. Best price I found online!
RSM-TC700: The RSM-TC700 is Our Replacement for the Hytera BD502, BD552, PD502, PD562, TC-508 and TC-610 shoulder microphone. Our replacement remote speaker microphone features coil cord and swivel clip and a 3.5mm audio jack for an add-on earpiece.
For use with Hytera:
Compatible Alternatives: SM08M3, SM13M1, SM26M1