Up to 50-hour battery life and quick charging. Designed to be lightweight and comfortable for all-day use. Crystal clear hands-free calling with built-in mic. Multipoint connection allows you to quickly switch between two devices at once. Find headphones easily with Fast Pair. Siri/Google Assitant compatible. Swivel design for compact and easy carrying. Partially made with recycled plastic and uses plastic-free packaging. Great sound quality customizable to music preference with EQ Custom on the Sony Headphones Connect App. Boost the quality of compressed music files and enjoy streaming music with high quality sound through DSEE.