Unique concave and convex ear shell design caused by convex, left and right channels, respectively, to the rear Of the bumps to distinguish between wearing a blind. Remax RM-711 Wired Earphone in-ear headphones based on ergonomic design principles. Fit the natural curvature Of the ear while dispersing the ear pressure. Give you a different sense Of skin, to ensure lasting comfort and excellent sound quality. Remax RM-711 Wired Earphone unique appearance Of the possession Of the amazing power. Providing a powerful bass For movies and music. So that the sense Of hearing and body feel the impact Of low frequency and shock.