Yamaha Digital Karaoke Processor KP-300 Tested Digital Key Control 3 Mic Setup Tested Working great cosmetic condition. This unit has been tested and is working with no known issues. It is in fairly good shape but has a few light signs of wear so please see all pictures for details on condition. You are guaranteed to receive the item as described in the listing. I do not do advanced electrical testing of the internals so I cannot guarantee that everything is up to the same specifications as they would be coming out of the factory. There is an understanding that as electronics age parts such as capacitors may fall out of factory specifications. There may be other issues with “as is” units that are not listed in the description. It is unfortunate that I have to write this but scammers do exist.