It will be notified by music when the battery is fully charged. Easy to use app. [How to use] -Connect the charging cable. -When charging is complete, give an alarm with a song or ringtone. -When charging is complete, disconnect the power cable or close the completion window to stop the notification song automatically. [Function] -Low battery notification (TTS and ringtones can be set). -Notification song setting (including ringtone) -Battery notification level setting (80% notification when set to 80%) -Volume control. -Do not disturb -Battery level indicator at the top of the screen. -Battery widget support (4x1 size). -Earphone detection (If the earphone is in use, it will be replaced by PUSH notification.) -Battery charge record. [Access Rights Information] The following information about the access rights used in the app. ■ Required Access Rights - none ■ Optional Access Rights -Storage space  It is used to search for music files (mp3) in the phone and set it as a notification song. [Troubleshooting] If the app does not work, refer to the link below. https://ddolcatmaster.tistory.com/187