KZ-ZS1 in-Ear Wired Earphone HiFi Computer Game Music Heavy Bass Dual Dynamic Headphones with Microphone Enhanced sound quality, outstanding bass and treble clarity Built with high-performance speakers for extended frequency range, lower distortion, hi performance and noise isolating ear tips eliminate ambient noise. High Quality Headphone Headset with Mic Ergo-Fit Design for Ultimate Comfort and Fit,3.5 mm plug Ideal for All Apple Device's, Androids Smartphone, Windows Phone, MP3/MP4 Player, Portable Music's Player.