【Pioneer DDJ-SR】Fully functional. Purchased new and used only at home, but I am selling it because I no longer have the opportunity to use it. Instant purchase ○ There are scratches and dirt from use (fader, around the start button), but there are no problems with normal use. Knobs are fine (knob covers on the EQ section and the center have been changed from the original) ・ Paint is chipped on the vertical fader section, and the volume may be unstable very rarely, although it is a slight sound. *Please refer to the images for the condition. I have confirmed that it works with both Serato DJ and rekordbox. It is a controller that can be operated with both Serato and rekordbox just by connecting it to a PC with the included USB terminal (made by Oyaide). I think this is a recommended model for beginners who want to start DJing. No box, Oyaide USB cable included. Please note that we do not accept any claims or returns after purchase. (※Please download the instruction manual, firmware, and drivers from the following Pioneer homepage) 【Product Features】 The DDJ-SR is a Serato DJ Pro-exclusive DJ controller that inherits various performance features and performance of the high-end model DDJ-SX2, which supports 4 channels. In addition to the PAD PLUS and VELOCITY functions that make performances using PERFORMANCE PADS more individual, it enables aggressive and diverse DJ play using large jog wheels suitable for scratching. It supports Serato DJ Pro with advanced functions such as various FX, BEAT JUMP, SLIP function, and QUANTIZE. You can use it immediately by simply connecting it to your PC/Mac. 【Reference Link】 DDJ-SR Product Site https://www.pioneerdj.com/ja-jp/product/controller/archive/ddj-sr/black/overview/ DDJ-SR: Tutorial/Instruction Manual https://www.pioneerdj.com/ja-jp/support/documents/archive/ddj-sr/