... 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 ... .9cmMaterial: ABSColor: whiteVol: 4V-6VOperated by 4x"AA" batteries,USB or DC4V-6V.Power: 4WPacking: 1 pc/color box 30pcs/carton ...