As a premium model, the Sony XP50AP earbuds combines extra bass with Sony's bass booster to offer fantastic sound. The design of these earbuds provide an acoustically tight seal around the ear for superior sound isolation and a deep tight bass response. Features In-line microphone for phone calls Deep bass sound Tight bass response Acoustically-tight seal Produces high-sensitivity and low distortion The driver unit is specially designed with two things in mind - first, there is a very high sensitivity with relatively low distortion. Second, it is comfortable and has stabilized fitting. Also, the mic and tough flat cord make these headphones tangle-free.
