A compact tuner that allows for highly accurate pitch adjustment. - Brand: Peterson - Model Name: STOMP mini - Connectivity: IN/OUT jacks, USB port - Included: Box, manual, warranty card Thank you for viewing. I purchased this new but I'm selling it because I don't use it much. The screen still has the protective film on it, so it will be clean if you remove it. A dedicated Velcro sticker is attached to the back. There are no operational issues.