ExpertPower 2-wire Surveillance Earpiece PTT Mic for Yaesu Vertex MH VH VX Series Excellent Audio Quality, Rugged Construction. For a list of compatible radio models, please see our product description. Flexible and durable high grade Kevlar cable for demanding applications. Mini PTT Mic with a metal clip. Can be attached covertly to an undergarment or used overtly. Excellent for use in police, military, nightclubs, bars, paintball, security,restaurants, hotels, bouncer, warehouses, and noisy environments.