Sony MDRXB800 Extra Bass Over The Head 50mm Driver Headphone, Black Connectivity technology-wired; minimum frequency response-3 Hz; earpiece-earpiece design-over-the-head; earpiece-earpiece sensitivity-106 db.; physical characteristics-weight (approximate)-10.23 ounce;.Connectivity Technology: Wired Cable length-3.94 ft;maximum frequency response-28 kHz; earpiece-earpiece type-binaural; physical characteristics-color-black; Sound mode-stereo; connector plating-gold plated; earpiece-driver type-neodymium; physical characteristics-material-oxygen-free copper (OFC);