The award-winning MX510-N1 Mobile Headset from Plantronics delivers high-performance sound for clearer calls. Interchangeable pivoting WindSmart voice tubes provide wind noise reduction technology and can be positioned for optimal sound clarity. The next-generation Flex Grip design provides a secure, comfortable fit for extended wear. Convenient in-line controls put your phone's functionality at your fingertips. Black/Silver Maximum Comfort: Innovative FlexGrip design for secure, comfortable fit. Works well with eyewear. One-Touch Controls: Easy-to-use mute and volume buttons.