This is a set of two gemini cdj-10s, offering a full range of DJ equipment functions. - Brand: gemini - Model: cdj-10 - Quantity: Set of 2 Both units have been tested and powered on. Button response: One unit responds without any issues. Please check the photos for details; more photos have been added. Plus 16 to 0 to minus 16. The lid opens and closes, and the LCD screen responds. The other unit has issues with the lid closing properly, and the response is sluggish with some lag. Since not all functions have been tested, this is a junk item. No returns or refunds. Everything is shown in the photos. Due to the age of the product, it is recommended for parts or for those who can perform maintenance. The items have been disinfected and cleaned, but please understand that they are used items, so only purchase if you understand this. Please ask any questions in the comments before purchasing. We cannot respond after purchase. The buyer will be prioritized even if there are comments. Immediate purchase is welcome. You can remain silent until the end. You can get a small discount if you buy with other products. #YuuShop Thank you for viewing.