with USB/SD interface, with wireless MIC guitar input 6" speaker, portable Basic Funtion with USB/SD card,with Equalizer, wired microphone/ guitar inputProduct Specification PowerAC 185V~265V((50-60Hz), built-in DC12V/2.6AHwith one rechargeable battery, external DC 12V power inputFrequency Range:VHF 210-270 MHZ one-driven-oneFrequency Response50Hz-18KHz±3dBMIC Effect25-50mWireless MICwith one ...