Coodio Remote Lapel Microphone Shoulder Speaker Mic [Compact Slim] For Vertex Standard EVX-531, VX-241 2 Way Radio Coodio's Vertex Standard EVX-531, VX-241 two way radio compact slim remote lapel microphone speaker mic simplifies jobs by allowing users to talk and listen without having to remove their radios from belts or carrying cases. This Remote Microphone conveniently clips to your shirt pocket or lapel and enables easy communication, rugged enough to withstand the heavy outdoors or even on a recreational level. Slim and compact design, includes Push-to-talk switch, coiled cord, swivel clip. 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...