Speaker Mic Compatible with Cobra 29LTD 29LX PR240 PR245 PR350 PR375 PR550 PR3000 PR3100 PR3175 PR4000 PR4200 PR4250MRHH100 MRHH200 PR240 Mic with wide PTT Key-press area, convenient for operating. PR375 Mic transmits high quality sound even in loud environments and helps to provide a really perfect long range distance communication PR245 mic Strong reinforced PU cable & durable coil cord, high tensile strength & long-life design Shoulder microphone Excellent for use in FBI,Bodyguard,military,nightclubs,bars,paintball,security,restaurants,hotels,bouncer,warehouses,airports,casinos,manufacturing plants,conventions and noisy environments Speaker Mic Compatible with Cobra: PR240 PR245 PR350 PR375 PR550 PR3000 PR3100 PR3175 PR4000 PR4200 PR4250MRHH100 MRHH200