• Up to 35dB hybrid active noise cancellation - Effectively isolate excess outside noise: With hybrid active noise cancellation technology, the feed-forward and feedback microphones work together to effectively separate background noise. Whether you're outdoors, on the bus or metro, one-touch for up to 35dB* noise cancellation. Redmi Buds 4 blocks out the hustle and bustle.

• 3 ANC level options and adaptive ANC mode - Just the right level of quietness: Intelligent scene judgement based on ambient noise levels. Redmi Buds 4 intelligently switches between 3 ANC levels under adaptive mode supported by AI algorithm and offers a more comfortable noise-cancellation experience.

• AI noise reduction - Get every word across clearly: The AI voice algorithm accurately differentiates human voice and ambient noise, so that even in the noisy environments, the listener will hear every word you say, loud and clear.

• 10mm dynamic driver 0.006mm ultra-thin diaphragm - Pleasant to listen to vivid voice and instrumental sound: The large dynamic driver unit makes the voice sound crisper, the lower frequencies fuller and the treble brighter. Choose a high-quality 0.006mm diaphragm to bring out even more detail in your favourite music.

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