I've only used it a dozen times that too in home studio. The brst thing about this keyboard is that its a fully functioning midi keyboard but has speakers of its own so you dont need a computer to practice. The keyboard is in excellent and fully working condition with minimal signs of use as shown in the pictures. I dont have the original adapter I got with it anymore but will provide the adapter that I use which works seemlessly with the keyboard. I dont have the original box it came with. Cant ship it, so local pickup only.