MelodyBoost Dual Drivers co-created with Dynaudio deliver a premium listening experience tailormade for audiophiles, featuring crisp vocals and deeper, dynamic bass. OnePlus Audio ID 2.0 creates a personalized audio profile with enhanced natural sound, tailored for your ears with a quick and simple ear scan and listening test. Spatial Audio and Dolby Head Tracking Technology recalibrate your audio as you move for cinematic sound. And with Dolby Atmos you get a wider field of clear, natural sound and pristine vocals. Three noise canceling modes (Faint, Smart, and Extreme) that range between 25 dB to 48 dB. The “Smart” noise canceling mode allows for intelligent, dynamic noise cancellation that adjusts automatically, compensating for ambient sounds in your surroundings. IP55 water resistance for the buds and IPX4 for the case, to ensure your listening experience doesn’t get washed out..Fast charging - 10 minutes for 10 hours. Buds Pro 2 supports Qi-certified wireless charging and delivers up to 39 hours of playback.