XiR Series: XiR P6600, XiR P6600i, XiR P6608, XiR P6620, XiR P6620i, XiR P6628, XiR E8600, XiR E8600i, XiR E8608, XiR E8608i, XiR E8628i. Compatible Motorola MotoTRBO Multi-pin Radio Models In-line microphone hidden in PTT button, with swivel clothing clip attached.
eBay