Redmi Buds 4 Pro ( Midnight Black ) Features Hi-Fi sound quality Up to 43 dB active noise cancellation Enhanced technology for reducing wind noise Up to 36 hour ultra- long battery life Dual device smart connectivity Hi-Res Audio Wireless Supported: Incredible sound A feast for your ears - Redmi Buds 4 Pro 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. Dual dynamic drivers: Create your own personal sound system Redmi Buds 4 Pro 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 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. Get 4 months HD Music, on us Each Redmi Buds 4 Pro has a unique promotional code for a 4-month free trial of Amazon Music Unlimited for eligible new subscribers to Amazon Music Unlimited. Promotion code redemption process as below 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. Innovative wind noise reduction technology: Run to your heart's content and leave the wind behind you Each earbud features a built-in metal wind shield to effectively reduce wind noise, as well as a proprietary wind noise reduction algorithm that automatically switches on when the wind reaches a certain speed so that you can enjoy your outdoor activities without being disturbed. Touch control: Control music and switch modes with your fingertips Each earbud is equipped with a sensor that allows you to pause music playback and switch modes with a short or long press. Ergonomic design: Comfortable fit Redmi Buds 4 Pro features an innovative and sleek design with curved edges. It is also ergonomically designed to reduce pressure in the ear canal, and weighes just around 5.0 grams to ensure a comfortable fit.