The sony ier-m7 is a professional stage monitor earphone that delivers flat, accurate sound for musicians and music lovers alike. The durable earpieces of the m7 are designed for an ergonomic and stable fit, while the detachable cable uses a silk-braided insulator to reduce microphonics and cable noise. 13 different ear tip variations are included so that you can find a perfect fit. This means that whether you are on stage or on the street, the ier-m7 will deliver hours of comfortable listening. A standard 3.5mm stereo cable is included, as well as a 4.4mm balanced cable for maximum performance with premium audio players like the sony nw-zx300. the ier-m7 features 4 balanced armature drivers house internally in a magnesium alloy bracket to suppress unwanted resonances. The result is a clean, fast and accurate sound well suited for stage monitoring. The m7 is a slightly darker sounding earphone, ensuring a lack of sibilance even at higher volumes, while vocals are always clear in the mix.