... Quality Mini Nr-Fe-B USB/SD Card Player Voice Amplifier K8300Product Features *Mini Portable, USB/SD card multifunctions*streamline appearance, ergonomic body ... port, microphone, speaker, voice amplifier, karaoke.*SD/MMC Card and USB support mp3, Ipod,Note book,mobile,PSP etc *Large capacity Rechargeable ... .: 17.8kgs High Quality Mini Nr-Fe-B Magnet USB/SD Card Player Voice Amplifier K-8300