Wi Digital SEMI5 Wi Micro-In-Ear Professional High-Definition In-Ear-Canal Micro-Driver Reference Monitors - Polished Silver Brass The Micro-In-Ear Technology - Wi Digital's new Micro-In-Ear Personal Reference Monitors are uniquely designed using a very small 5.5mm proprietary precision balanced micro driver in a solid brass housing placed directly in the ear canal. Practically Invisible - The ultra-small, featherweight, ergonomically correct, timeless minimalist design Wi Micro-In-Ear monitors are nearly invisible to audiences from any angle making you the center of attention. Ultra-Comfortable Universal Secure-Fit - Designed to look, feel and fit like no other In-Ear monitors, the feather-weight Wi Micro-In-Ear monitors are incredibly easy to wear even for an extended time. Exclusive Tangle & Kink Resistant Cable - Wi Digital's exclusive tangle and kink resistant cable is designed to resolve itself quickly and easily with a simple and gentle shake. Sweat-Proof - Designed to withstand heavy perspiration, the Wi Micro-In-Ear monitors can be used in all types of weather and environments. Connectivity technology: wired