... product feature Part number:SG-589 mini portable multimedia speakerinterface:USB,SD card,3.5mm stereo jacksupport resource:U-disk ... ,black,ect technical parameter: Output power: 5W(2.5w+2,5w)Loud speaker specification:1.5cm ,4ouhm,3wfrequency ... supply power package: size of gift box:323.2*54.1*80.3mmweight:0.345.11Kgsize of ... for each product,size of gift box:323.2*54.1*80.3mmsize of carton box:435 ...