Reproduce the powerful sound in addition to the large-diameter driver with a diameter of 40mm, so we adopted a neodymium Poron magnet of high magnetic force, even in a small output, such as a portable audio player, a powerful well-balanced from low-pass to a high region I will reproduce the sound. Convenient folding type mobile by sliding inside the unit portion, so you can be folded to the head band inside at the touch of a button, you can enjoy not just the home, on the go bass is powerful. Sealed type difficult to sound leakage housing portion has become so sealed structure, there is little that the bass or impaired even when listening to music in the city, or influenced by various external noise. Since virtually no sound leakage to the surroundings, you can enjoy the sound feel free to without worrying around. In addition, the large pad so you gently covering the entire ear, and has a structure that fatigue in use for a long time.