SL7550, SL7580, SL7590, SL7550e, SL7580e, SL7590e. SL1600, SL2600, SL3500e, SL4000, SL4010, SL4000e, SL4010e. SL8050, SL8550, SL8550e. Earpiece PTT Mic Headset for Motorola Radio SL300 SL500 SL1600 SL2600.
eBay