Recommended by 10 GRAMMY Award Winning Artists Pure Sound via Targeted Active Noise Cancelling: Choose your scenario via the Soundcore app and listen as ambient sounds disappear to leave you with nothing but pure sound. PureNote Driver Technology: Get a 45% boost to your bass, and a 30% wider frequency bandwidth than ordinary drivers. Drivers coated with 10 hardened nano-layers offer incredible stiffness to generate stunning accuracy and clarity. HearID Personalized EQ: To ensure a perfect listening experience, HearID intelligently analyses your unique hearing profile and creates a tailor-made sound setup just for your ears. Or take complete control of the sound with the adjustable EQ or 22 preset sound profiles. Up to 26 Hours of Playtime: Get 7 hours of playback from a single charge on the earbuds with up to 3 recharges from the charging case.