WONDERFUL TO TALK: Incorporates optimized wideband audio technology and Digital Signal Processing (DSP) and Noise-Cancelling Mic, produce an astonishing crisp and clear sound feast. Enjoy superior calls in high noise environments. COMFORT-TESTED DESIGN: Rigorously tested for stability and comfort on a wide range of ear shapes.Skin-friendly ear pads and super lightweight design ensure you focus on your talk with lasting wearing comfort.