Good to know - Cut the noise and never skip a beat with this SoundMAGIC's passive noise isolating earphones- The ergonomic in-ear design with the silicone tip fit so well they create a total sound block - 10 mm dynamic drivers let you pump up the bass and still enjoy the low or textured vocals in depth - Adjust the volume, skip a track or answer the call with the 3-button in-line controls - Choose from 3 sizes of ear tips for the most comfy fit - these won't feel loose or fall off while you're on the go