I am selling this speaker selector because I no longer need it due to reorganizing my equipment. I have changed it from a bundled sale to a single item. It's convenient for switching between speakers. Sometimes there is poor contact in the A/B switch section, and the sound on one side may be low, but it works fine after clicking it a few times. I have been using it as is. Therefore, it is considered as junk. *Returns are not accepted.* NFJ Speaker Selector