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 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 clear calls: 6 noise-cancelling microphones with noise reduction ensure your voice is isolated and transmitted in high-clarity for a face-to-face experience   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. clear calls: 6 noise-cancelling microphones with noise reduction ensure your voice is isolated and transmitted in high-clarity for a face-to-face experience.