BEHRINGER Digital DJ Mixer DDM4000 with Effects, High-Quality Sound

Selling this mixer as I have replaced it.
I used it until about 10 years ago. It worked without any issues at that time. I mainly used it for mixing records. It was not used for intense scratching or similar techniques.
I liked its good sound quality, but I am selling it due to a change in specifications.
As part of this listing, I have tested the sound output from each part, and there is some crackling in each gain knob. I believe this will disappear with continued use. Otherwise, it seems to be usable without any problems.
There is no rust or major scratches on the exterior.
It has been lightly disinfected with alcohol for this listing.

The DDM4000 is a DJ mixer equipped with a wealth of practical features such as dual effects, an auto BPM counter, a sampler, and MIDI control. It has 4 channels with 3-band EQ and a separate microphone input. It is ideal for performances that include MCs or vocals at events. The easy-to-read display allows for more detailed settings of each function, expanding your playing possibilities.