E361-M1 listen-only  earpiece for Morotola radio with 2-pin jack 

suitable for motorola radios

GP68/88/88S/300/308,P040/080/110/1225/1225LS/2000,PRO1150/2150/3150,CP88/100/150/200,SP10/21/50,CT150/250/450/450LS,XTN-446/500/600,XU-1100/2600,CLS-1110/1410,LTS-2000,P-110, PR-400,PMR-446