FOCUSRITE ISA ONE. Only set up at home, never taken out. Used in a smoke-free, pet-free environment with humidity control. The protective film on the VU meter has not been removed, so it's in very good condition for a used item. The original outer box and packing materials are also included, so it will be shipped as is. As a 1-channel preamp, it's an industry standard, a model that elevates the quality of singing and narration recordings. The clean and clear ISA sound is the best value for home recording. There are few units in this condition, and it's a piece that you can use with confidence for a long time.