The korg pandora pxr4 can run on batteries and via the mains (so it is portable). I used to have one myself, but I sold to get money for a different peice of equipment. It comes with about 80 drum beats, it has 4 main tracks and 32 virtual tracks, you can put many different effects on either and instrument or a mic for vocal. I would recomend this to anyone as it worked amazingly for me.
Pages 1