USB or Battery powered Mini Speaker 1)Operated by battery,USB or DC power 2)used for mp3,mp4,md, ... ipod,computer,mobile phone USB or Battery powered Mini Speaker used for mp3,mp4,md,ipod,computer,mobile ... : 1 pc/color box 30pcs/carton Carton size:61cmx51cmx46cm G.W.:14.4kgs/ctn