SHEEPDOG MICROPHONES 3.5mm Threaded Listen Only Earpiece, Compatible Black
Compatible with Motorola BDN6676 audio adapter, BDN6783 audio adapter, speaker microphones NMN6247, NMN6250, NMN6251, NMN6272, NMN6274, NNTN8383, PMMN4084 and other remote speaker mics (RSM) that accept a 3.5mm threaded listen only.