By default the program opens in your Internet browser, where it shows the code you need to enter on your mobile device. When you do that, you can start syncing video, images, and whatever else you want between both devices. All the backed-up files are saved in a default folder, although you can choose to save them to a different location in the settings.
Daemon Sync Server is an essential software for users of this powerful Android app (available on Uptodown). Thanks to it you can keep backups of your videos and images without having to save them to the cloud: they will always be stored locally.