boss katana 100 watt 2x12 multi effects guitar amp. these amps are awesome especially if you download the app for it. you can literally make this amp sound however you want. there are to many features to list. comes with manual a usb cord and a data transfer dangle so you can hook it directly to your phone for the app. which I bought separately. also comes with the ga-fc foot controller which when I bought the amp I had to buy separately as well. asking 250 cash this is priced to sell new ones are 450 now