Cosonic Crystal Earbud Headphones Stereo 3.5mm Earphones For Mobile Phones Smartphones With Built-In Hands-Free Microphone Ultra-lightweight, Comfortable design. Replace your old earphone or add another set for your home, work or travel. Built with high-performance speakers for extended frequency range, lower distortion, hi performance and noise isolating ear tips eliminate ambient noise. Ideal for All Apple Device's, Androids Smartphone, Windows Phone, MP3/MP4 Player, Portable Music's Player. Premium Earbuds for the High Sound Quality with Super Bass Acoustically engineered to produce exceptional frequency response for an enhanced listening experience.