This is a set including an audio interface, monitor headphones, and a condenser microphone. I used it for home recording of guitar and singing. I'm selling it to organize my equipment. This is equivalent to 45,000 yen when new. It's discounted because it's a set sale. It's also listed separately. Set Contents: Microphone: Steinberg UR22C Headphones: Samson SR850 Condenser Microphone: Marantz pro MPM-1000 Various cables