TalkPod 1 PIN Covert Acoustic Tube Earpiece MIC for Vertex Standard Walkie Talkie Two Way Radio UNIVERSAL MIC  Ideal for all kinds of two way radio brands, if the plug suit for your PTT socket.Match with Vertex TRANSPARENT DESINGS -- Transparent ear microphone with a behind-the-ear design ADVANCED MATERIAL  Using professional plugs with metal plating. SUPER QUALITY -- Covert acoustic tube transmits more clear sound and top thick line increase of service life. EASY TO USE --- It is light and small.Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments.