Plantronics MX500C Cordless Phone Over-the-Ear Headset: * Flex Grip design for a comfortable fit for extended wear * Adjustable WindSmart voice tubes for precise positioning of the microphone * For headset-ready cordless phones * High-performance sound * Patent-pending wind noise-reduction technology eliminates whistles and static * Calls sound crisp and clear even while driving with windows open or air conditioning on * Includes 2 voice tubes of varying lengths and colors