CDJ-400 & DJM-400 DJ Set [Set Contents] Model: CDJ-400 x2 Model: DJM-400 x1 Power Cables x3 Audio Cables x3 *You can start playing immediately if you have speakers or a stereo system. [Product Description] Thank you for viewing. CD operation has been confirmed. Regarding USB, it seems there is a capacity limit on the USB itself, so it was not used. There are no noticeable scratches or stains, but there are minor scratches from use. This is a CDJ set from Pioneer, which boasts the No. 1 brand recognition and popularity in the industry. The CDJ400 is equipped with JOG MODE, allowing for scratch play and enjoyable performance. It is also PC compatible, making it versatile equipment. Recommended for practice! #CDJ #CDJ400 #DJM400 #Pioneer #Pioneer