Mac users
a. In the “Applications” directory of the Finder window, find an app called Photo Booth.
b. Long press the device to take a photo / switch button, you can see the WiFi light blue light flashes
c. Use the data cable to connect the device to the computers USB 2.0 interface and run “Photo Booth”
d. Click Photo Booth and select the camera “USB CAMERA” to use

https://manuals.plus/skybasic/gnimb401kh03-wifi-digital-microscope-manual#ixzz7rGyeikxP