- Brand: KORG - Model Name: microSAMPLER Battery operation confirmed. There are issues due to the previous owner's poor handling. Firstly, there is an overall yellowing, likely from smoking. Secondly, as you can see in photo 4, one of the keys is raised. It's stiff, but it produced sound. Please understand these two points. The items for sale are the adapter and the main unit only. The manual can be easily found by searching, so there shouldn't be a problem. Thank you.