About This superior sound quality Bluetooth speaker system has 7 pulsating LED colours, as well as a wired connection if needed. It supports FM radio, micro SD card and a USB drive. Product Features • Bluetooth • USB drive • Micro SD • Aux line-in • FM radio Product Specification • Output power (rms): 12W • Speaker unit: subwoofer - 3" (6W) • Frequency response: 45Hz-18KHz • Power supply: USB powered 5V • Subwoofer size: W180 x D161 x H125 (mm) • Satellite size: W82 x D82 x H115 (mm) What's in the box 1x Subwoofer 2x Satellite speakers