The IER-M9 In-Ear Monitor Headphones from Sony are designed to stay firmly in place so you can capture all of the emotions you express in every performance. Built with five balanced armature drivers, a magnesium super tweeter, an audio-grade film capacitor for less distortion, and accurate tonal balance, they are designed for musicians to deliver a natural sonic experience in live stage and rehearsal applications.
The IER-M9's integrated magnesium inner housing reduces vibration and the pre-formed ear hanger provides easy positioning and stays fit in your ears. 3.5 and 4.4mm silver-coated, oxygen-free copper cables are included, each with a natural silk-braid cable insulator and a non-magnetic undercoat plug. The IER-M9 in-ear monitors deliver less sound degradation, finer detail, and natural reproduction of musical expression.