1.Mini-Din earphone Plug 2.for Motorola 2pins ,FDX two way radio accessories 3.Suitable for Motorola CP88,CP100,CT450,ECP100 Mini-Din earphone Plug for Motorola 2pins two way radio accessories Suitable for Motorola CP88,CP100,CT450,ECP100,CT150,LTS2000,VL50,VX1100,VX2100,MU21CV,MU22CVS,MV24CVS...Fit for FDX:FD150A,FD450A,FD160A,FD460A Ear 3.5mm mono. Mic 2.5mm mono. Spaced 8mm.