A:Answer Hello! Kindly be informed that this unit has noise reduction. This feature allows you to hear the voice of the person you are talking to more clearly, by reducing the surrounding noise coming from the other party’s telephone. The product is compatible with most of the smartphones. If you need further guidance, kindly let us know and we will happily assist you. You can contact Support Team via Live Chat on the Panasonic Website, Contact Us option, Mon-Fri, 9am-5pm EST.