... Specificationmini multimedia speaker with USB/SD card reader: 1.3.5mm Audio cable 2.USB cable 3.FM radio, earphone function Features: multimedia speaker with USB/SD card reader ... Play music, with high-powered loudspeakers, long time play2.Build-in stereo FM radio3.Build-in 1450mAH Li-ion battery, support ... mp3,mp4,laptop,mobilephone as peripheral speaker. multimedia speaker with USB/SD card reader