Thank you for viewing. This is a junction box from 【Lagoon Sound】. It is equipped with a tuner out and a volume function. The volume can be used as a master volume. The enclosure is a high-quality custom-made product from Hatake Precision Industries. I fixed it to an effects board once, but I never used it. The Velcro for fixing is included as is. It can be peeled off cleanly, so please remove it if you don't need it. I am also listing many other effects pedals, so please take a look if you'd like. Type...Electric Guitar