Each earphone is equipped with two built-in high-sensitivity microphones, which use beamforming technology to eliminate the background noise during calls, allowing the other user to hear you clearly, even in noisy environments. Mi True Wireless Earphones 2 Basic feature the MIUI Global user interface. When the charging case is opened, an interface for earphone connection pops up. After connecting, the earphones can be conveniently operated from your phone and you can view the battery levels of the earphones and the charging case. Truly wireless design, free of restrictions. You can take either left or right earphone as you wish, flexibly switching between single and dual ear mode. Dual ear mode provides wireless dimensional sound while single ear usage offers a freer experience. The dynamic driver with a 14.2mm large composite diaphragm is used to make the sound fuller and richer with a more natural feel, restoring more real texture and details. At the same time, AAC audio codec technology is supported to improve the audio quality and experience, providing users with clear sounding audio. The half in-ear design fits the ear canal snugly for more comfort and stability inside and out. A single earphone only weighs 4.7 g. The compact and lightweight body makes it easier to wear and greatly reduces fatigue caused by prolonged wear. Operations such as to play/pause music, answer/end a call, wake up the voice assistant can be performed by simply double tapping the earphones. Easily control without operating the mobile phone. The software and hardware are deeply optimized with a new architecture. The left and right earphones are conjointly connected, and the sound signal is transmitted to the earphones synchronously. The anti-interference stability has been improved and the sound delay has been effectively reduced.