Get superior audio quality rivaling that of over-the-ear designs using these Hi-Fi Reflective Sound Technology Earphones from Monoprice! These earphones feature a unique; patented design in which the drivers are reversed to face out away from the ears. The sound resonates within the aluminum earphone body and is reflected back to the ear. This produces superior sound quality over a conventional design using the same materials; as shown in the frequency response curve below. They feature a flat cable; which resists tangling; and a 90-degree connector; which reduces strain on the cable where it meets the plug. An inline microphone allows you to use them for phone calls; when plugged into a smartphone. The inline mic includes a button; which can be used to start and stop playback. Features: Unique reflective design with drivers that point outward; away from the ear Reflective sound design reduces ear fatigue from extended listening sessions Inline microphone allows you to use these earphone for phone calls Tangle-free flat cable design prevents frustration Gold plated TRRS plug for smooth; corrosion-free connections 90-degree connector reduces strain on the cable Enhanced bass response