Active Noise Cancellation with Transparency Mode - With 40dB active noise cancelling, calibrated for noise and wind reduction 11mm Bass-tuned Dynamic Drivers + Dolby Atmos support delivers immersive, true-to-life sound using industry-leading spatial audio; Feel your music with three sound modes: cinematic movie, immersive music and mobile gaming With a monster battery life up to 38 hours, power your party all day and night – and all day an; With Dash Charge, a 10-minute charge powers your music for 5 hours Sweat-resistant, IP55-rated internals combine with a hydrophobic o-coating for protection from corrosion; The IPX4-rated charging case also loves to shrug off water Stay in control with Google Fast Pair to connect instantly; If you don't have a OnePlus phone, find your sonic sweet spot with our exclusive HeyMelody app.Note :Please update the smartphone to the latest version.Note Please update the smartphone to the latest version