Thank you for viewing. This is a complete DJ set for sale. You can start DJing immediately after purchase. Turntables: DENON DN-S3700 Mixer: VESTAX PMC-05PROⅡ Headphones: Audio-Technica ATH-PRO5MK2 Speakers: EDIROL MA-10A Also includes a complete set of wiring. Operation has been checked. As for defects, the AC adapter wiring for the mixer has slightly poor contact. It works when fixed, but may lose power if the wiring is moved. It can still be used as is, but if you are concerned, you may want to replace it with a new one. The other turntables, speakers, etc. are working normally. The turntable vinyls have both been replaced. The original vinyls are also included, but some are chipped, so please check the photos.