Konix USB Midi Roll up Piano Flexible 61 Keys with Soft Black and White Keyboard Play with Computer 61 keys, made by silicon rubber, can roll up Must connect with PC or laptop, work with software MIDI out, you can record & edit music with MIDI software as a MIDI keyboard Support chord sound, black keys is higher than white keys Compatible with Cakewalk, Sonar, Cubase, Nuendo, etc. major sequencer software and VST/VSTi