Thank you very much for viewing our products. We will do our best to ensure a smooth transaction, so thank you for your cooperation. The product description is as follows: Product Name: 【YAMAHA】 Yamaha Professional Power Amplifier XM4180 Description/Condition: All items are shown in the images. This is a used item, so there are scratches. Please check the images. Power-on operation is not a problem. Please understand that this item has been stored at home, and please check the images carefully before purchasing. Thank you. #Mixer #Power Amplifier #PA Equipment #Sound Equipment #BOSE