BWOO ANC wireless earbuds with power digital display feature a large LED power display in the charging case, allowing you to check the earbuds and the charging case battery status at a glance. Coupled with a marvelous battery combination, it keeps you away from battery anxiety. With a 40 mAh battery in each earbud, it delivers 5 hours of non-stop music time to light up your inner drive and drive away the afternoon blue every afternoon. And 400 mAh battery in the charging case provides 5 charging cycles for the earbuds for an additional 25 hours of entertainment time.