1USB interface connects to the computer and use measurement software for analysis and observation. 2With the aid of the lifting bracket, the height can be adjusted, and the zoom can be 1-500X continuously. 3This digital microscope provides true 5MP pixels with clear image quality for ease of use. 4Support some mobile phones with OTG function, with 8 white LED lights, easy to operate and use. 5With lifting bracket, the observation is more stable and it is more convenient to use.