Multi-function line selector, SEND/A/B switching possible. I bought this to put on my board, but I'm selling it because I no longer have the opportunity to use it. I've put it on a board once, and at that time I used a separately purchased bottom plate to attach Velcro tape. For the sale, I've returned it to the original bottom plate. I've only used it a few times, and it worked without any problems. - Model: LS-2 - Brand: BOSS - Type: Line Selector - Connectors: SEND A, SEND B, RETURN, INPUT, OUTPUT - Controls: LEVEL, MODE Thank you for looking.