Sony WIC100 - Wireless In-Ear Headphone Sony WI-C100 Wireless In-ear Headphones - Up to 25 hours of battery life - Water resistant -Built-in mic for phone calls - Voice Assistant compatible - Reliable Bluetooth connection - Blue Accessory List: Headphone Battery Life (in hrs): 25 Bluetooth: Y Enjoy up to 25 hours of battery power on these Bluetooth® headphones Music sounds more natural on these in-ear headphones, thanks to our Digital Sound Enhancement Engine Tailor your sound using the equaliser on the Sony | Headphones Connect app IPX4 water resistant - splashes and sweat are no problem for these Sony headphones Easy hands-free calls and access to your voice assistant