New Qty 4Motorola 56517 Earpieces for CLS, DTR, RDX, Spirit or XTN Two-Way Radios -New part # (replaced by) HKLN4599. Motorola DTR Series: DTR410, DTR550, DTR650, DTR600, DTR700. Motorola RDX Series: RDU2020, RDU2080D, RDU4100, RDU4160D, RDV2020, RDV2080D, RDV5100, RDM2020, RDM2080D, RDM2070D.
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