comfortable fit - the earphones come with the ergo-fit design that sits perfectly in ears and doesnât dig into the ear canal, giving you a comfortable listening experience. built for convenience - widely compatible with most 3.5mm enabled devices, the earphone can work effectively with devices that are compatible with 3.5mm jack. also, the cord length of 1.2mm makes the earphones easy to connect. Single button operations - integrated with the improved technology, the earphones give you the freedom to answer a call, play/pause music with a single button. thus, accessing your phone will be an effortless task for you. high bass audio quality - the stringz 38 comes with the high bass audio quality that gives your ears a real audio experience. you can listen to music or can have a conversation conveniently with a premium audio experience.