Hi-Res Audio Wireless Supported - Incredible sound: A feast for your ears – Redmi Buds 4 Pro Wireless Earbuds is certified by Hi-Res Audio Wireless and supports LDAC audio codec at transmission speeds of up to 990kbps, as well as audio resolutions of 96kHz/24bit and above. Hi-Fi Sound Quality, Dual Dynamic Drivers - Create your own personal sound system: Redmi Buds 4 Pro Wireless Earbuds features an all-new dual dynamic driver system, which consists of a 10mm aluminium alloy diaphragm and a 6mm titanium diaphragm for treble frequencies. Together, the two drivers combine to deliver crystal-clear treble and rich bass in a wide range of genres. Immersive Sound - for a live immersive experience: Redmi Buds 4 Pro Wireless Earbuds features an all-new immersive sound system, which uses a Xiaomi proprietary HRTF sound algorithm to simulate real-life sound and a deliver a truly immersive experience when watching video, compatible with various audio source and playback devices.* Cutting-edge Noise Cancellation Technology: Up to 43dB active noise cancellation - Effectively reduce unwanted noise. The earbuds can reduce noise by up to 43dB, blocking up to 99.3% of external noise*, allowing you to enjoy your music in peace and quiet. AI adaptive ANC - Intelligently switches between 3 ANC levels(Light/Balanced/Deep noise cancellation). Dual Transparency Mode - Listen to your surroundings and conversations: In regular transparency mode, you can hear your surroundings without having to remove the earbuds. You can also switch to enhance voice mode when you need to talk to someone face to face.