I plugged this keyboard into a guitar amp using the L Mono jack.

All of the keys play without sticking. They all feel the same.

The "spinny thing" and the red-lit buttons change the sounds. Some of the sounds it played were drums, different pianos, harmonica, electric pianos.

Not all of the red-lit buttons light up when I push them. But different ones light up when I push them depending on which Voice or Song it is playing. Perhaps it is by design?

At times, the sound was scratchy or cut out momentarily when I used the "spinny thing". I would compare it to a dirty pot on a guitar.

I made a little video and am happy to send it to you, and I will attempt to get it on youtube.

1) I know nothing about synthesizers.

2) I did not check all the buttons and functions. I have no clue what they are supposed to do, so I wouldn't know if they worked properly or not.

3) I have several more synthesizers for sale and will be listing them here.

4) The people I got them from smoked and had a dog. I suspect everything will need to be opened up and cleaned.

5) If you need this keyboard immediately, please buy from someone else. I am frequently out of town and it will likely take me several days to mail it. If you are in Austin, San Antonio, DFW, I can bring it to you when I head that way. If you are near Tulsa, I will be there Early August.

Thanks! I hope you can use this keyboard.

--Darren Morrison, Christoval TX