What brand of mobile phone is made in Chongqing?

Oppo, vivo, jinli, bailifeng, pepper, etc. According to the mobile phones made in Chongqing, there are many mobile phone brands such as oppo, vivo, Gionee, Bailifeng and Zanthoxylum bungeanum. Mobile phones, called mobile phones or wireless phones, are usually called mobile phones. At first, they were just a communication tool. In the early days, it was also commonly known as "mobile phone". They are portable telephone terminals that can be widely used. They were originally developed from 1940 battlefield mobile phones manufactured by Bell Laboratories.