61 full-size keys with aftertouch. 4 Zones per patch. Latch Mode for triggering drum loops. Snap Shot mode. 16 realtime controllers. 16 patch select/program change buttons. Full version of E-MU's Proteus X Desktop Sound Module with over 3GB of sounds. Xboard Performer bank of performance keyboard sounds. Mo'Phatt X (Hip-Hop/Dance), Planet Earth X (World) and Protean Drums X (Drums and Percussion) expansion libraries. Xboard Control software. Steinberg's Cubase LE and WaveLab Lite (PC only). USB, battery or AC powered.