1.mini size :5*5*4.7cm 2.sound quality 3.factory ... /pause, volume adjustment, FM radio, next/previous, fast forward /rewind, lock/ unlock the touch panel during reading USB or Micro SD ... :(1) aluminum alloy, not only high-grade and durable.2 mini petite shape design, cute, can be equipped with hanging rope ... suitable for trading company to export gift orders wholesale price mini portable gift speaker ...