Coodio G-Shape Earpiece Police Security Headset inline PTT Mic Microphone For Vertex Standard EVX-531, VX-241 2 Way Radio Coodio's Vertex Standard EVX-531, VX-241 two way radio G-Shape earpiece headset is optimized for communications intensive environments in which personnel need to interact with customers while maintaining radio communications. Built-in microphone with an inline PTT(Push To Talk) button that clips on your shirt, so you can use your radio device to communicate discreetly and easily, whether you're in security, retail or hospitality. Provides high quality audio, easy-to-use functions and all-day comfort. Excellent for user in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, party, building construction, stage, studio, hunting, outdoor and noisy environments. Compatible with 1-Pin(with 2 screws) Vertex Standard portable handheld walkie talkies two way radios including EVX-531, EVX-534, EVX-539, VX-231, VX-241, VX-261, VX-264, VX-451, VX-454, VX-459, VX-420A...