Yamaha True Sound delivers detail and clarity. IPX7 Waterproof and sweat resistant. Ambient Sound - stay fully immersed but also hear the world around you. Qualcomm cVc - noise suppression and echo cancelling for clear calls. Listening Care - loudness optimization at low listening volumes. Stable connection with Qualcomm TrueWireless Mirroring. Up to 9 hours of playtime - additional 25 hours with charging case. Compatible with Siri or Google Assistant. Includes: USB power cable. 5 Eartip sizes (XS S M L XL). 4 Silicon fin sizes (XS S M L).