• Active noise cancellation up to 40 dB, reducing background noise by up to 99%. Ideal for noisy outdoor environments or subway trains. • High-fidelity sound quality with a dual-magnet dynamic diaphragm and Xiaomi's professional HRTF tuning, restoring sounds to their original state. • Lightweight and comfortable design, weighing only 4.6 g per earbud. Optimized structure for a stable and comfortable fit in the ear. • Long battery life with up to 32 hours of playback using the charging case. Compatible with Qi wireless charging. • Simultaneous connection with two devices, allowing easy switching between entertainment and work on platforms like Android, iOS, and Windows. • Product dimensions: 1.5 cm wide, 1.5 cm high, and 6 cm long. Total weight: 0.052 kg.