Audio-Technica ATH-M50xBL Professional Studio Monitor Headphones With Zalman Zm-Mic1 and FiiO E6 Audio Technica M50x Bundled with Zalman Zm-Mic1 High Sensitivity Headphone Microphone Critically acclaimed sonic performance praised by top audio engineers and pro audio reviewers Proprietary 45 mm large-aperture drivers with rare earth magnets and copper-clad aluminum wire voice coils Exceptional clarity throughout an extended frequency range, with deep, accurate bass response High Sensitivity Headphone Mic, 3 Mini Clips for Tidy Arrangement