Overview: Small & folds easily for carrying & storing Multi-functional control box: 128 tone functions, 100 rhythm options, 40 Demo songs plus music recording 61 keys (standard piano key 5 Octave 1 key) Power: DC 6V (adaptor not included); Battery 4 AA 1.5V (not included); USB (Universal Serial Bus) port Output: 500MW1 Manual Specifications: Dimensions: 42.91 in x 9.06 in x 1.26 in Weight: 40.39