Astonishing sound quality with High-Resolution Audio. Sony’s best ever call quality with AI based noise reduction algorithm and bone conduction sensor. Small, light and beautifully designed. Smooth switching and a clear Bluetooth signal with a powerful new Integrated Processor V2. Adjusts to the world around you with adaptive sound control, using AI to offer the ideal listening experience. Talk and only hear ambient sound using Speak-to-Chat which pauses the music when you start talking. Water resistant for everyday use so splashes and sweat won’t stop you. Designed with the environment in mind with construction from recycled plastic materials and 100% paper packaging. Battery life up to 8 hours (24-hours with case). Quick charging - 3 min. for up to 1 hour of listening.