AUDSTER AUD-49 49 Key Electronic Keyboard •10 Voices/10 styles/ 0 Percussions •Record & Playback/ Vibrato/Sustain •Sync/Fill-in/Rhythm Programming Function •Speaker Output(L) /With Microphone •Single Finger/Fingered Chords/Chord •Timbre/Bass •25-level Tempo Control •8 Demonstration Songs •PS: DC 9V/AC Adaptor