14.8mm speaker drivers for high quality sound Large 14.8mm speaker drivers squeezed into earbud headphones deliver high quality sound. Rubberized front caps for wearing comfort A rubberized front cap provide a totally soft body for wearing comfort. Flexi-Grip design for durabilit A soft, flexible part protects the cable connection from damage that otherwise would occur due to repeated bending. Neodymium magnets enhance bass performance and sensitivity Neodynium is the best material for producing a strong magnetic field for greater sensitivity in a voice coil, better bass response and higher overall sound quality. Soft body ensures a comfortable fit The transparent, rubberized headphone body molds itself to the shape of the ear for comfortable listening. Acoustic System : open Sensitivity : 107dB Speaker diameter : 14,6mm Respons frekuensi : 9 - 22.000Hz