... .Compatible with devices:Mobile Phone,MP3, MP4,TF Card, SD Card,DC player, U flash disk .be recharge .exrenal battery zlm-N930 USB/SD/TF card portable ... lithium battery 16.1×audio cale,1×charge cable -100% and high quality - This machine is a portable multimedia speaker, ... change different mode between music play, Speaker and FM radioWhy you choose us? N930 USB/SD/TF card cube portable mini speaker