Thank you for viewing this product from among many others. The item I am selling is a switcher, the RS616, made by Custom Audio Japan. This model is loved by many professional guitarists and is still a top-of-the-line piece of equipment used in the field today. I have used it for about 6 years, but I am selling it due to a system change. I used it frequently on-site, so it shows signs of use, but it is still an effector that can be used in the field. Included accessories are a manual printed at home and an adapter. The equipment details are listed below. 【High-Function MIDI Controller】 CUSTOM AUDIO JAPAN's RS 616 is a MIDI/AUDIO controller perfect for guitarists and music production. It has 6 switches, allowing for easy operation of various devices. - Brand: CUSTOM AUDIO JAPAN - Model: RS 616 MIDI / AUDIO CONTROLLER - Function: MIDI / AUDIO Controller - Number of Switches: 6 switches - Display: LED display - Bank Function: Bank Up / Bank Down