The Vanquish uses a next-generation transponder that requires only one mic. It fits any sized neck. Includes two small silicone in-the-ear speakers that reduce outside noise from ATVs or other engines while providing optimal sound. Use a favorite headset or helmet speakers by plugging into the standard audio jack on the Vanquish. Includes coiled waterproof PTT (Push-To-Talk) button. Fits Motorola Visar, T200, T5000, T6000 and 7200 series; Cobra PR240, PR245, 350WX, 375WX, 550WX, 3000WX, 3100WX, 4000WX and 4200WX radios.