Lightweight with an ergonomic design, the WF-C510 earbuds pair comfort with up to 22 hours' battery life in both the earbuds and the charging case for an easy, all-day listening experience. Available in a range of colours, they can pair with two Bluetooth-enabled devices simultaneously, automatically switching between them when you get a call.A compact, lightweight pair of earbuds with up to 11 hours of battery life in the buds and another 11 hours of charge in the charging case. Also includes Digital Sound Engine Enhancement (DSEE) and Multipoint Connection for simultaneously playback from two Bluetooth devices.