1. ES500i Headphone ergonomically aluminum metal cavity designed, the before cavity of the minor arc design can be more fit the ear canal, and further ease the pressure on the ear canal, wearing more comfortable and natural, long period of use will not feel discomfort; 2. Powerful neodymium magnet unit design, with Noise isolating hi-definition technology, super bass, You will enjoy the excellent sound; 3. ES500i headphone with a microphone, Facilitate the user to answer the telephone and Internet voice calls; 4. It use the most fashion flat TPE cable (like noodles), Tension, non-toxic and safety for environmental, the cable is very soft, increase feel and not knotted characteristics, not deformed, stretching mild pull will not damage; 5. 3.5mm line type plug for the three-stage design (also known as Apple plug), applies to any smart phone, 24K gold plating process designed to ensure that the signal transmission without distortion, the sound is more pure and transparent; Package included: 1 x Headphone 1 x Carry Bag 1 x Clip for cable fixing 1 Bag Extra Pairs of Ear-tips