I am selling items I no longer use as part of organizing my belongings. This item is from clearing out my child's room, as they have moved out for work. I am not knowledgeable about the item, so I may not be able to answer your questions, but thank you for your consideration. (❁ᴗ͈ˬᴗ͈)" Thank you very much for viewing. (^-^) ● Product Information LUXMAN AS-4Ⅲ Line Selector The LUXMAN AS-4Ⅲ line selector allows you to switch between multiple sound sources. - Model: AS-4Ⅲ - Type: Line Selector - Input Terminals: Line 1, Line 2, Line 3, Line 4 - Output Terminals: L, R - Manufacturer: LUXMAN CORPORATION, JAPAN - Ground Terminal: GND ● Condition There is some wear and tear as a used item. Please check the condition in the photos. I am not familiar with the item, so I have not been able to confirm its operation. (❁ᴗ͈ˬᴗ͈) ⬇ ⬇ ⬇ ⬇ ⬇ ◤◢◤◢ Request ◤◢◤◢ If there are any operational problems or defects after the item arrives, we will provide a refund. Please contact us before giving a rating. (We cannot accommodate items that are junk or treated as junk, as they are assumed to be broken.) We cannot respond after the rating has been given, so thank you for your understanding. ◤◢◤◢ Request ◤◢◤◢ 【Please Note】 Everything shown in the photos is included in this listing. Please understand that if manuals, boxes, or other accessories (parts) are not shown in the photos, they are not included. (❁ᴗ͈ˬᴗ͈)" Thank you for your consideration. (*ˊᵕˋ*)