mini speaker small size,easy to take,suited for mp3,mp4,computer,notebook,mobile phone,and other audio devices.... Speaker, ... the wire case.Support card reading speaker, mp3 player, laptop speaker, fashionable gifts, digital player....1)R.M.S.:1W*22)P.M ... .P.O:300W 3)Speaker Drive Unit:2.25" 4)S/N ...