Think what goes into a hair dryer? Exterior design, looks good and functional. How you make the plastic cover, do the plastic injection molding? How you design all the internal parts, fan, motor housing, heating wire, power circuits, micro-controllers etc, and make sure everything fits. Some companies even do individual components themselves, like the brushless motor, or there is a Chinese supplier that makes them, which provides much faster time to response. Then do the testing for each component, electric, heat, water, moisture testing. Then design a mass manufacturing system with automation and human labor that achieves really high yield and low wasted materials. This is the hardest part, its easy to make a hair dryer by hand taking 100 human hours and make sure it works. It's much harder to make 1M hair dryers per month, that is going to be used in all sorts of environments and with all kind of abuse, make sure they work well for a number of years so customers don't return them, or you go bankrupt from recalls and warranty, and make sure you only have to throw out the absolute smallest number of manufacturing defects, and really control your cost structure so you still make a profit when importers are squeezing your price. Then the supply chain and logistics, shipping from suppliers and shipping to customers. Then create a number of products for different markets. China can manufacture for cheap, but people don't realize manufacture for cheap and at massive quantities is a technology itself. It's also management, business process, even company and worker culture. China doesn't have the cheapest labor cost. It's the combination of everything that produces a physical product with the level of quality, fit and finish at the price point.