Product Name: "ZOOM AMS-22 Audio Interface" Thank you for viewing. Purchased from Amazon in November of last year. I only used it once for online guitar recording, so there are no noticeable scratches or signs of use. (Operation confirmed) I no longer need it because I purchased a multi-effects processor with an audio interface function. Case and instruction manual are included. - Model: AMS-22 - Brand: ZOOM - Function: Audio Interface - Input Type: Mic/Guitar - Monitoring Features: Direct Monitoring, Loopback - Phantom Power: 48V - Output Type: Line Output