StudioDaydream KCM-OD Silver Overdrive. This is a non-functional item and is being sold as junk. I was using it with satisfaction until recently, but suddenly the LED lamp stopped lighting up when the switch was pressed, and the overdrive sound also stopped working, so it is being sold as junk. I hope to sell it to someone who can use it for parts or repair it. I don't know the product version. I bought it about 10 years ago, so it's likely an older version. Also, there are no accessories such as a box. Thank you very much.