DEFENDER MEDIUM-DUTY LAPEL MICROPHONE w/D-Shape Ear Hanger. The D ring fits over the ear to hold earpiece in securely in place. Patented swivel design can be used on either ear.
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