音乐播放器：启动播放器自动获取手机和SD卡上的音频文件。点击一首曲目时，出现几个按钮控制音乐的暂停、播放等-Music Player: Player starts automatically on the SD card for mobile phones and audio files. Click a track, there are several buttons to control music, pause, play, etc.

控制android手机录音，并将录音文件保存在sd卡-Control android mobile recording and audio files saved on sd card