Best Quality Guranteed. Super Sound Performance: wired headphones are equipped with 40mm powerful high-performance neodymium magnet moving coil drive unit, achieving higher sensitivity and wider frequency response, ensure hi-fi stereo sound and low bass sound. 99.99% OFC & gold-plated jack reduce distortion. Hands-free Control Excellent Microphone: The headphones are built-in with 360 high sensitive omni-directional microphone for clear speech and reduction of background noise for improve phone call conversations. In-line remote allow to control your music and call. (to answer and hang up the phone, pause and play music, press next/before track) Human Body Engineering Design: The on ear headphones are equipped with headband, soft sponge ear pads make you enjoy music anytime, professional-grade ear pad and headband material delivers more durability and comfort; folding design make it convenient to storage and carry.