... Lithium Battery *High Power 20w *CE,FCC Approved USB/TF Card Mini Portable Sound Box,CE&FCC ApprovedProduct Features *Mini ... Portable, USB/TF card,recording and remote control *Streamline appearance, ergonomic body ... ,high sensitivity and instant response. *Multifunctions: Set USB, TF card port, microphone, speaker, voice amplifier, karaoke, recording.*SD ...