The Final Audio Design E5000 designed the sound quality of this product based on the latest acoustic engineering and psychological research results. Utilizing the typical method of sound creation whereby certain high frequencies are emphasized, you're given to feel vivid sound when you first listen, but because of this, other ranges are obscured and hard to hear. With E5000, no particular sound ranges have been emphasized, and this, together with our commitment to detailed sound expression, achieves a vast sound stage that seems to envelop you, something unthinkable in earphones up until now. In addition, the silver-coated cable is standard equipment. With the employment of an MMCX connector that can be re-cabled, it is possible to replace the cable in the event of cable breakage. With their swing fit mechanism, the earpieces can be swung left and right and tilted towards the audio canal for a perfect fit. These prevent changes in shape owing to the aperture of the earpiece coming into contact with the audio canal. The sound is transmitted directly to the eardrum, delivering clear sound. The precision involved in assembling the parts for the driver unit is of the utmost importance. The small-aperture 6.4mm diameter dynamic driver unit boasts an extraordinarily high level of precision for this price range. Machined from stainless steel and with a mirror finish, the housing firmly supports the driver unit and suppresses unnecessary vibrations; it is an important element with respect to sound quality. With this silicon carry case, the cables can be rolled up and stored easily. The earphones themselves are gently secured using thin dome-shaped silicon covers. Specifications: Housing: Stainless steel mirror-finished, Driver: 6.4mm diameter dynamic driver, Connector: MMCX, Cable: OFC silver coated cable, Sensitivity: 93dB, Impedance: 14 Ohms, Cord length: 1.2m. Accessories: Silicon carry case, Ear pieces (E type 5 sizes), Ear hook, Karabiner.