【Product Name】 Native Instruments Traktor Kontrol S4 MK1 DJ Controller Power on/Basic operation confirmed. Includes generic AC adapter. 【Description】 This is the Native Instruments 4-channel DJ controller "Traktor Kontrol S4 MK1". It's a standard model widely used for both club DJs and home practice, an all-in-one controller with a wealth of controls. ■Confirmed Items ・Power on confirmed ・Physical operation of each fader, knob, and button confirmed ・Lighting of each lamp at power-on confirmed (see photos) ・The exterior has some scratches and signs of use, but it's in relatively good condition for its age. ■Accessories ・AC adapter ■Additional Notes Detailed operation check via PC connection has not been performed. Therefore, it is sold as-is. Dedicated software (Traktor Pro, etc.) is not included, so please prepare it yourself if needed. ■Recommended for: ・Those who want to practice本格的な DJ play with 4 channels ・Beginners who want to set up an environment inexpensively ・Those who have used the S4 in the past and want to try it again ・Those looking for base equipment for modification or parts ■Regarding Purchase This product is the first model, so complete operation is not guaranteed with current OS or the latest software environment. Please purchase only if you understand the specifications of DJ equipment and Traktor, or if you can confirm the above contents. Please note that we cannot accept returns or address minor defects after purchase.