Casio WK6600 76 Note Portable Keyboard w/Built-In Speakers, Power Supply, and Keyboard Stand This Bundle Includes - Casio WK6600 76-Key Workstation Keyboard with Power Supply ($299.99) and Casio ARDX X Style Keyboard Stand ($20.99) 700 built-in tones, 10 user tones 210 preset rhythms and Auto Accompaniment 16-track Song Sequencer with support for recording up to five songs 32-channel internal mixer with volume, pan, reverb send and other parameter controls