PATRIOT LIGHT WEIGHT Behind-the-Head Headset. Single Speaker, Noise Canceling Mic. Also has jack for remote wired Finger PTT (Part Number PTT-1)
Motorola most popular 2-pin (side) includes: CLS, CP185, CP200, PR400, GP, HT, MTX, PRO seies and includes DIGITAL models.
RELM 2-pin (side) connector which is the same as very popular Motorola 2-pin and fits many radio models including: RPU6500 and RPV6500