Baiston Two Way Radio Anti Radiation Acoustic Tube PU Earphone with K-Connector Color Black High quality environmental PU, more elastic and durable Stainless steel net voice design and make the voice more clear Anti radiation which takes care of you and help you keep health Unique design with high technology. A perfect performance to work with your walkie talkie Interface type: K (1x 3.5mm and 1 x 2.5mm)