What days to attend CES?

I am planning on attending CES for the first time. I hope to meet people who may be interested in my audio cable products. For a person in my position, which days of the CES would you recommend as important to attend? All 4 days? I am trying to keep the costs minimal, but at the same time I don't want to miss any opportunities. I appreciate any advice you could give. Looking forward to seeing you there.