... 2.USB cable 3.FM radio, earphone function Features: multimedia speaker with USB/SD card reader can link to iPad, MP3, MP4 ... charged when playing by plug in straightly. 1.Play music, with high-powered loudspeakers, long time play2.Build-in stereo FM ... pilot lamp, build-in mp3,mp4,laptop,mobilephone as peripheral speaker. multimedia speaker with USB/SD card reader