This document discusses five levels of consumer goods products: core benefit, basic product, expected product, augmented product, and potential product. It also covers consumer goods classification, product mix decisions, and brand strategy decisions. Specifically, it defines the five product levels as (1) core benefits, (2) basic products that turn core benefits into goods, (3) expected products with buyer-expected attributes, (4) augmented products that exceed customer expectations, and (5) potential products that include all possible augmentations. It then provides mobile phones as an example to illustrate the five levels.