7 hours play time on a single charge *28 hours total charge with charge case Clear voice technology for hands free calling 3 pairs of ear cushions for comfort and fit Automatic dual calling Robust zinc alloy charge case with USB C charge port Mixx control app to customise your earbuds Transparent mode, to aid with hearing outside noise In-ear fir Digital display screen 15 mins quick charge, 15 mins = 2 hours play time