[ask] amazon affiliate-> one domain one product?

Good morning guys. I want to ask about amazon affiliate, since I'm new in affiliate. Does one domain only can promote one product? Example... domain xxxx1 only can promote samsung x73188 phonecell. If I want to sell another product let say samsung s7767, I have to make/purchase another domain let say...xxxx2 . Is that how we do/sell product with amazon affiliate?
Thank you.

No, you don't need to have a domain per product. If you are promoting Samsung phones you could have one domain like BestMobilePhones.com for all mobile phones related promotion.