... SD/FM tuner Patented speaker system with FM USB CLOCK Features:1, 2.1 great selling multimedia ... speaker 2, With SD/MMC card jacks3, With USB 2.0 slot4, Support FM, automatically search ... 11, Built in 2200mAh Li-battery and support USB power-supplyTechnical parameterSupport MPEG-1,MPEG-2,MPEG ... finish: ABS Power input: DC 5VProduct picture Patent music speaker system with FM USB