Multi-function line selector, the BOSS LS-2. Output of each A/B line can be adjusted. There are 6 types of line select modes. It can be used in various ways, such as switching amplifiers and controlling the volume during solos and backing. It can also supply power to other compact series pedals. Operation has been confirmed. Used about twice in live performances. I think it's in good condition. There is a scratch on the part in the 10th photo. Non-smoker, no pets. Instant purchase and price negotiation are both possible. - Model name: LS-2 - Brand: BOSS - Function: Line selector Thank you for viewing. Type...Electric guitar Manufacturer...BOSS #LS-2