With the wide application of 2.1mm OV6946M camera module and the increase in demand, in the face of many brands and prices on the market, what aspects should I pay attention to when buying a 2.1mm OV6946M camera module? What should I pay attention to? Beijing Shenzhou Mingda 2.1mm OV6946M camera module brand Xiaobian answer for you: 1. Three major features: Three features that should be paid...