Thank you for viewing. This is the Behringer TUBE ULTRAGAIN MIC500USB. It's a high-quality model equipped with a vacuum tube preamplifier and a USB audio interface. For more details, please see: https://www.electori-br.jp/products/508.html It has been used infrequently. The model name: MIC500USB has been written on the included AC adapter with a white paint marker. There is a scratch below the main unit logo. Otherwise, I think it's in overall good condition, but please understand that this is a used item and accept it as-is, with no returns. - Model Name: MIC500USB - Type: Vacuum Tube Preamplifier - Connection Terminals: USB, LINE IN, HI-Z, MIC IN - Functions: Direct Monitoring, Preamplifier Mode - Power: 12V 1000mA AC Adapter included - Outputs: Headphone Output, Direct Output - Controls: Gain, Output, Low Cut, Phase Reverse