Xiaomi Redmi Buds 4 - Black

Up to 35dB hybrid active noise cancellation: Effectively isolate excess outside noise | 3 ANC level options and adaptive ANC mode: Adaptive mode with scene judgement, help choose the most suitable ANC level for you | AI noise reduction: Make high-quality phone calls without missing a single word | Dual transparency mode: Effortless communication even with your earbuds on | 10mm dynamic driver unit, 0.006mm ultra-thin diaphragm: Richer vocals, thumping bass | Up to 30 hours long battery life with case: Up to 6 hours of battery life on a single charge