and 20 yuan What difference 200 yuan mobile protection shell expensive where

200 dollars? The same is the cell phone protection shell gap where now almost a cell phone, Android smartphones and Apple's iphone are at the top of the sun, welcomed by everyone, like the iphone 4 of a major innovation is that it uses the front and rear glass shell design, in order to beautiful to prevent the back of the shell scratch and wear, To the mobile phone to add a quality clearance jacket-protection shell is a more common choice. On the market can see a variety of mobile phone protection shell, cheap 10 yuan, expensive hundreds of yuan, the selection of a good quality protection shell is particularly important. Many people think that instead of buying a 200-yuan mobile phone protection shell, buy more than 20 yuan protection shell, even if the bad can be a new one. This is understandable, but there is a saying that the price of a penny, commodity economics also tells us that there is a principle can not break the equivalent exchange, 20 yuan of mobile phone protection shell really and 200 yuan mobile protection shell the same? So where is the gap? 200 yuan value? The same is the phone protection Shell Gap where the general consumer can not from a variety of high imitation of the mobile phone protection shell and more than 200 yuan or even higher price of the mobile phone protection shell to see the difference, the same with a beautiful appearance, the same just right into the phone. In fact, whether from raw materials, or workmanship, as well as functional design, 20 yuan and 200 yuan mobile phone protection shell is still a difference, today with the author to look at the same protective shell, the price of mobile phone protection shell and low-cost protective shell what is the difference.