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.
For Maxon radios with 1-pin connector on the side with retaining screw such as PL1145, PL2215P, PL2245, PL2245P, PL2415, PL2445, PL5151, PL5161, PL5164, SL100, SP200, SP200K, SP210