SL Series SL1K, SL2K, SL1M, SL300, SL500, SL500e, SL1600, SL2600, SL3500e. SL7000 Series SL7550, SL7550e, SL7580, SL7580e, SL7590, SL7590e. SL8000 Series SL8050, SL8550, SL8550e. [1x] Swivel Earpiece.
eBay