Xiaomi Mi In-Ear Basic Earphones Black (ZBW4354TY) Precisely crafted aluminum acoustic chamber The specially anodized sound chamber made of aluminum alloy protects the construction from corrosion. Thanks to zirconium sandblasting, it is also scratch-resistant. Fine details, such as the beveled edge, are smooth to the touch and add elegance. Supplied with two extra high-quality silicone ear tips (S/L) Improved balanced damping The uniquely designed damping system generates an improvement in sound quality and airflow. It separates the airflow from the front part of the chamber and allows the sound to pass through the rear part, creating a fine and transparent sound. Better performance, great bass sound. Start playback by pressing Pause, play, answer, and hang up calls with one button. Simple and convenient.