Self Forming, Custom Fit, Stay-in-Place, Wind Canceling, Ear Buds For Hard Core Sports. These are made for people who get dirty, who are in the wind, in the snow, who are not afraid to bleed to achieve a goal. People who play hard, work hard and demand the best from their equipment. People who want high quality sound without fussing with the other ear buds that are more in the way then an asset. Self Forming memory foam tips blocks the wind and create custom stay in place fit Includes built in cord keeper and high quality microphone and gold plated connector Asymmetrical behind the neck design and no tangle cord easaly remains unseen Best used with Equalizer App (many available free) for full dynamic range of product