1.Detachable Mini-din plug 2.6 pins 3.Fit Motorola GP328 two way radio Min-Din audio Plug for two way radio earphoneSuitable for Motorola handheld radio:GP140,GP320,GP328,GP329,GP338,GP339,GP340,GP360,MTX950,MTX960,MTX8250,PRO5750,GP680,HT750,HT1250,HT1250LS... Min-Din audio Plug for Motorola two way radio GP328 GP338