The Cloudlifter CL-1 Mic Activator amplifies the microphone signal, providing clear sound quality. - Model Name: Cloudlifter CL-1 Mic Activator - Brand: LOUD - Connection Terminals: XLR I am selling this because I bought a different microphone instead of the sm7b that I originally intended to buy. I have never used it, so I haven't checked the operation. There may be initial defects. It has been stored for a while, so the box is a little damaged, but the main unit is as good as new. I have also lost the instruction manual, so only what is shown in the photos is included. Thank you for looking.