The Huawei Freebuds SE2 True Wireless Earbud is designed with a lithium polymer battery that supports power usage during listening. Each earbud has a minimum battery capacity of 41 mAh and the charging case supports 510 mAh capacity. The device supports wireless listening without cable dependency. The earbud design supports regular audio playback and communication. The earbuds support regular listening and communication across different environments.