Xiaomi technology co., ltd was established on March 3, 20 10. It is a global mobile internet enterprise focusing on the research and development of intelligent hardware and electronic products, and also an innovative technology enterprise focusing on the construction of high-end smart phones, Internet TV and smart home ecological chain. Xiaomi Company pioneered the development of mobile phone operating system in Internet mode, and enthusiasts participated in the development and improvement mode.

"Born for fever" is the product concept of Xiaomi. "Let everyone enjoy the fun of science and technology" is the vision of Xiaomi Company. Xiaomi Company applies Internet development mode to develop products, makes products with geek spirit, and kills intermediate links with Internet mode, so as to make everyone in the world enjoy high-quality scientific and technological products from China.

Trade-in means that when consumers buy new goods, if they can give the same kind of secondhand goods to the store, they can get a certain price discount, and the secondhand goods play the role of discount coupons; If consumers can't submit old goods, new goods can only be sold at the original price.

For manufacturers or merchants who use the old-for-new promotion method, the recycled secondhand goods usually have no economic value; The purpose of exchanging old goods for new ones is mainly to eliminate the sales obstacles formed by second-hand goods and prevent consumers from buying new goods because they are reluctant to discard used second-hand goods.

Trade-in promotion involves bicycles, watches, household appliances, furniture, houses, gold jewelry, pressure cookers, water heaters, gas stoves and so on. Even suits, sweaters, sneakers, woks, etc. You can trade in the old for the new.